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FROM OUT OF 'THE ASHES' RISES 

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Timtxl Sinclair NorthAmerican User Groups Aubmm, Indiana 

Volume 2, Number 3 Fall 1992 



MEMORY MAP 

ROUTINES ADDRESS 



T/SNUG Chairmen 1 

T/SNUG Information 2 

ZXir QLive Alive! Article Contributions 2 

Contributors to this Issue 2 

From the Chairman's Disk . .. ; 2 

TREA$URY NOTE$ 4 

From the Editor's Desk 4 

INPUT/OUTPUT 5 

NEWS ITEMS 10 

ITEMS AVAILABLE FROM T/SNUG 13 

SPECIAL DEALS AND BUYS 13 

LIBRARY 13 

Articles: 

The BYTE -BACK MD-68 MODEM 13 

MINERAL OIL and the PRINTER RIBBON 14 

MINERAL OIL and the EDGE CONNECTOR 14 

RESETTING TRACK 0 and Other TWEAKING 15 

WRITING MORE EFFICIENTLY 18 

Ads 19 

And now a word from our Venders 21 

ZX-91 TEN YEARS LATER #5 23 



T/SNUG CHAIRMEN 



Here is the list of 1992 T/SNUG Chairmen and how to contact 
them. We wish to support the following SIGS: ZX80/ZX81, Z88, 
SPECTRUM/TS2068/TC2068 and QL. If you have questions about any 
of these fine machines contact the Chairman. 

s 

POSITION NAME PHONE PRIMARY FUNCTION 



Chairman 

Vice-Chairman 

Vi ce -Chai rman 

Vice-Chairman 

Vice-Chairman 

Vice-Chairman 

Vice-Chairman 

Treasurer 



Don Lambert 
Dave Bennett 
D.G. Smith 
Ed Snow 
Rod Gowen 
Rod Humphreys 
Bob Swoger 
Abed Kahale 



219-925-1372 Chief Motivator 

717-774-7531 CATS/Z88 

814-535-6998 TAPE & JLO Library 

407-380-5124 ZX81 TAPE Library 

503-655-7484 CCATS 

604-931-5509 VSUG/TS2068 

708-837-7957 Newsletter/BBS Sysop 

708-885-4337 CATUG/Cash Tracker 



Copyright (C) 1991 Timex/Sinclair NorthAmerican Users Groups 
Volume 2, Number 3 



ZXir QLive Alive! 
1 



Fall 1992 



jtxiv &%m sin*t is the 

newsletter of T/SNUG, the 
TIMEX/Sinclair NorthAmerican 
User Groups, providing news and 
software support to the T/S 
community in at least four 
newsletters per year. 

It is our goal to build a 
Public Domain software library 
and develop a list of available 
software for all T/S machines 
showing the source. 

Vendors have free space in this 
newsletter which they receive 
free of charge so they may see 
we are still out here. If you 
feel T/SNUG should perform 
other tasks, let us know your 
feelings . 

T/SNUG wishes to have one 
chairman from every T/S user 
group who will take charge of 
sending us their groups 
newsletter and other 
correspondence . 

We encourage your group to copy 
this newsletter and distribute 
it at regular meetings to all 
of your members. If you can't 
copy this newsletter, perhaps 
we can provide a disk with the 
articles on it for use in your 
newsletter . 

Articles appearing in this 
newsletter can be obtained by 
downloading this newsletter 
from our BBS. 

You can keep T/SNUG alive for 
an annual contribution of 
$10.00 made payable to Abed 
Kahale. Send check to: 

ABED KAHALE 
ZXir QLive Alive! Newsletter 
335 W NEWPORT RD 
HOFFMAN ESTATES IL 60195 

Tele: H708-885-4337 

ZXk QLive Alive! 
Article C©mttolb>Tiatii<G>iEi§ 

If you would like to contribute 
an article to the newsletter, 
upload a file to our BBS called 



TSNUG . ART . If you have an AD 
for the newsletter UPLOAD a 
file called TSNUG. ADS. "If you 
have NEWS to POST about your 
group, UPLOAD a file called 
TSNUG . NWS . 

If you need help contact the 
SYSOP by E-MAIL on the T/SNUG 
BBS, mail or by phone: 

BOB SWOGER 

613 PARKS IDE CIRCLE 

STREAMWOOD IL 60107-1647 

It is preferred you call: 
H708/837-7957 or W708/576-8068 

If you can only contribute hard 
copy, tape or disk format, send 
your inputs to: 

DON LAMBERT 

ZXir QLive Alive! Newsletter 

1301 KIBLINGER PL 
AUBURN IN 46706 

Please call 219-925-1372 before 
sending articles. 

CONTRIBUTORS TO THIS ISSUE 



Alvin Ronald Albrecht 

Dave Bennett 

Mort Binstock 

James Caldwell 

Bill Harmer 

Abed Kahale 

Ken Krack 

Don Lambert 

Bob Madaris 

Gill Parrish 

Hugh Polley 

Joseph Rampolla 

Bob Swoger, K9WVY 

FROM THE CHAIRMANS DISK 



HARDWARE, SOFTWARE, JELLYWARE & 
DOCUMENTATION/ INSTRUCTIONS OR 
SINK OR SWIM 

These thoughts were developed 
out of attempts to download 
files from Bob Swoger by modem 
to me which often resulted in 
defaults. I believe that a lot 
of the difficulty is that I do 
not have the necessary 
information to do the task 
properly. I also know that in 
the past I have had a time or 
two during voice communications 
that I have had some strange 
clicks and noises which could 



have resulted in defaults in 
downloading by modem. 

By information I am referring 
to documentation (which could 
be in the software in the form 
of HELP! files) which usually 
gets into the technical aspects 
of the hardware /software but 
which does not help the first 
time user of the particular 
hardware/software. Also by 
information I am also referring 
to the particular key punches 
and what results from the key 
punches as instructions. Some 
documentation does include 
instructions but usually in a 
very shorthand version. So now 
we have two sets of 
information, 1. documentation 

(which usually gets into the 
theory of the hardware/ 
software) and 2. instructions 

(which describes in very 
specific terms how to use the 
hardware /software) . 

I have had problems in the past 
that included the screen going 
blank and I sit there wondering 
if the program had quit or 
should I wait or should I 
reload the program. It is nice 
when the instructions state 
"after pressing ENTER the 
screen will go blank for about 
20 seconds and then the MENU 
will appear and then you can 
make your choice of — " It is 
very helpful if the 
instructions do tell you what 
the screen shows. If you are 
supposed to get a minus sign in 
the top left corner of the 
screen say so. 

Telephone instructions are 
helpful but not as good as 
something on paper. I have 
never conquered the ability of 
holding the telephone and 
writing and besides what is 
said often is misunderstood. On 
paper with all key punches and 
the results of the key punches 
make for very good 
instructions . 

I can remember my first 
attempts to use a word 
processor. I had ended up with 
copious notes of how to do each 
of the many things that one 
could do. And I eventually got 



to the place where the notes 
are no longer needed. The same 
applies to any new 
hardware / software I get 
involved with. I don't know 
what others do to get started 
with something new but I am 
cautious and like to progress 
slowly. I have some software 
that defaults and I don't know 
if it is my fault or the 
software . 

An example of the differences 

hofuoon Hof'Timei"! - !" a - ! - i <~>n anH 

instructions is the LarKen Disk 
Drive manual. I had a disk that 
was AUTOSTART on an 80 track 
disk. My 80 track disk was 
drive #1. But pressing ENTER 
when powering up would only 
access drive 0. I batted around 
the problem for quite a while 
and one night while my wife was 
in Japan I woke up in the early 
morning hours (3 AM) and I had 
the answer in my mind. It 
seemed stupid but I put on a 
robe and went to the computer 
and fired up and entered "RAND 
USR 100: GOTO 1" "ENTER" and 
then "RAND USR 100: New" and 
then "ENTER" and lo and behold 
the 80 track drive kicked in 
and the disk AUTOSTARTed. 
Nowhere in the documentation 
does it actually state that is 
the way to do it; but it is 
buried in the GOTO command 
explanation and the NEW command 
explanation. I know, I know 
that it reads that way but for 
someone reading the 
documentation looking for it 
will find it hard to find the 
way it is stated. Just a case 
of not understanding what is in 
the documentation. And after I 
did successfully get the 
problem solved it was months 
before I finally read the 
documentation and understood 
what it meant. 

Ideally there should be 
documentation for those that 
want the information and also 
specific instructions for those 
that do not grasp the full 
importance and how to out of 
the documentation. And the two 
forms of information should be 
separate. When I am using the 
software I don't care that it 
3 is taking the data at address 



XXXXXXX and transferring it in 
reverse order at address 
CCCCCCC and them adding it to 
the square of address QQQQQQ. 
But I do care that to get the 
material to SAVE to disk I need 
to press the "Q" key and then 
enter the file name not to 
exceed three characters and to 
expect a 15 second SAVE after I 
press "ENTER". 

Donald S. Lambert, Chairman 
TIMEX/Sinclair NorthAmerican 
User Groups 

TREASURY NOTl$ 



As of December 1, 1992, we have 
a balance of $607.87 from 7 
groups and 36 individuals. 

Abed Kahale, Treasurer 
TIMEX/Sinclair NorthAmerican 
User Groups 

FROM THE EDITORS DESK 



Though what Chairman Don has to 
say in his column about manuals 
has a great deal of validity, I 
just love it when he gives me a 
chance to editorialize and make 
us all think a little. So put 
on your thick hide, Don, 
because here it. comes! 

Al Feng says "A manual can't 
make you read it". Don seems to 
be one of those people who 
reads a manual but doesn't 
absorb/comprehend it. On page 9 
of the LKDOS manual Larry Kenny 
states: "If you plan on 
distributing some software that 
is on LKDOS disks, using disks 
formatted as single sided will 
be compatible on more systems 
than double sided disks. (48 
TPI is most common.)" And for 
this reason on page 10 of the 
same manual Larry states: "All 
software on disk from LarKen 
Electronics will be supplied on 
single sided 40 track disks 
unless requested otherwise." 

Don KNOWS I use only single 
sided double density (SSDD) 
disk drives and that to read 
any other format I must borrow 
a drive from a friend somewhere 
and go thru the hassle of 



converting the disks to SSDD 
format. Anyone with DSDD drives 
can easily send out SSDD disks! 
Yet Don, a LogiCall owner, 
keeps sending me DSDD formatted 
disks that DO NOT have LogiCall 
on them! 

In paragraph 6 of his column he 
states a problem he had trying 
to BOOT a disk in drive one. 
Page 3 of the LogiCall manual 
says: "Press ' N' <ENTER> to 
activate AUTOSTART ...." Don, 
LogiCall on the LarKen system 
is not optional! It should be 
on all LarKen disks! The 
LogiCall way to boot an 
AUTOSTART in drive #1 is to 
hold the ENTER key down on 
system boot -up and then hit '1' 
and then 'N' and ENTER. Just 
hit ? or H at the "DRIVE? ' or 
•Program? 1 prompt to see why! 

Don tries to remember what he 
hears on the phone instead of 
taking notes, we are all guilty 
of it from time to time. This 
is why I found it impossible to 
upload a program to him over 
the phone, (Paragraph 1) . He 
couldn't handle his side of the 
data transfer although there 
were just a few instructions I 
gave him to follow. 

Some manuals are too verbose 
and poorly organized, what Don 
really needs along with his 
manual is a quickie card. 

In Don's defense, on the 
software side, we programmers 
often write programs with no 
help files and when the program 
leaves a blank screen for a 
long period of time, we forget 
that maybe putting a flashing 
"WORKING" on the screen to give 
the user a feeling of security! 
Just, because we write programs 
doesn't mean we can write 
manuals, so thanks for the 
input, Don. I will be sending 
you a new LogiCall manual to 
try. 

Now in the last issue of ZXir 
QLive Alive!, we started a 
MODEM series and I wish to keep 
it going. This time I wish to 
take the BYTE-BACK modem 
because there are still some to 
be had for the TS2068. I don't 



feel this is the only modem and 
software you should have but 
you should have one for your 
collection. Read the article. 

Bob Swoger, Editor 
TIMEX/Sinclair NorthAmerican 
User Groups 

INPUT/OUTPUT 



Ken Krack writes: Dear Mr 

T^mKarf T Hawo nnc+- coon "t~ Vi C> 

UU1L IJw* \^ X. K~ , -L- iiU » ^ J W W 1— I \ — i i *i > — 

T/SNUG Newsletter for the first 
time ( please see copy of 
letter to Abed Kahale) and I 
appreciate its broader coverage 
than any 1 local ' T/S group . It 
should do a good job in 
maintaining interest in what I 
consider to be these masterly 
friendly computers, I even got 
the local county college to let 
me do the assignment work on a 
course in 'BASIC' language on a 
TS2040 printer and left 
everybody else behind 
struggling with C "Syntax 
Error". I would like to make a 
suggestion for what I find to 
be a long felt need and which 
can embrace the Whole 
membership of all grow s 
through the T/SNUG Newsletter, 
namely a section in the 
Newsletter for "PROJECT 
INTERLINK" by which 

members/groups interested in 
developing a particular project 
can liaise together by exchange 
particularly of T/S technical 
knowledge. Worthwhile projects, 
apart from being useful in 
themselves, will certainly help 
to keep the T/S interest 
flowing and growing 
particularly if project 
progress (and stumbling blocks) 
is reported regularly in the 
newsletter. We might also be 
able to produce a "T/S 
Computers Specialists 
Directory" of those willing to 
help others, for example I 
could be entered as 
specializing in 'plant data 
logging and alarming by TS2068 1 
The following could be taken as 
example (and on which I am just 
on starting) : - 

PROJECT INTERLINK 



A member of the SW A Sinclair 
user group wishes to develop a 
FAX interface for the TS2068. 
Technical help is particularly 
needed in out putting pixels 
(i.e. screen dump ) and signal 
compression, preferences to 
relevant articles/publications 
would also be appreciated. The 
developed design would be put 
into 'public domain' through 
the T/SNUG newsletter. Please 
contact : 

Ken Krack c/o Virginia Pavlik 
RD1, Dick Station 
Irwin, PA 15642 

Tel 412 446-5221 
FAX c/o 412 832-9733 

Alvin Ronald Albrecht 

writes: Dear Don, Has T/SNUG 
folded? I'm crossing my fingers 
that it hasn't but I haven't 
received a newsletter since 
Fall 1991. If I owe another 
year's dues, please let me 
know. If it has folded and if 
there is still some interest 
I'd be glad to help restart it 
with some articles or whatever 
is needed. Hoping to hear from 
you soon. Alvin 

Be assured, Alvin, T/SNUG is 
still healthy, perhaps the mail 
system got very slow or else 
some other event happened but I 
am forwarding the letter to 
Abed and I have written to you. 

Dave Bennett writes: It is 
nice to hear from you again. I 
didn't really have any Z88 
articles for ZXir QLive Alive! 
I have been writing about the 
Z88 for five years and I am 
running out of ideas. However I 
did write a short article 
describing a method of 
transferring files between the 
Z88 and the TS2068 without the 
use of a Null Modem. 

I would bet your inquiry came 
from Jay Shepard. He has called 
me several times asking 
questions including one about 
transferring files to the 
TS2068. I had advised Jay to 
use two modems. Jay did mention 
he had to connect to the phone 
jack in order to get this to 
work with his modems. I did not 



have to do this with my two 
Hayes modems. 

I have a Macintosh Classic as 
well as a Z88 and a QL. Bob 
Swoger uses Macintosh SE at 
work. Even though it would be 
easier to send the file 
directly to Bob on a Macintosh 
disk I decided to send the 
article on a PC disk again. 
Then you can add your comments 
if any. I was not too sure of 
the particulars on the TS2068 
side in this procedure. 

Hugh Polley writes: I would 
like to receive your TIMEX 
newsletter. Find enclosed a 
$12.00 US POSTAL money order, 
cashable at any post office. 
The extra postage money is to 
cover any expense in sending 
your newsletter to Canada. 

I would like to improve my QL 
by adding EPROMs and a disk 
drive system and by making it 
IBM compatible if possible. Any 
information you can send me is 
such an effort would be much 
appreciated! 

Hugh A. Polley 
#1-645 Meredith Rd. NE 
Calgary, Alta. 
CANADA T2E 5A9 

Mort Binstock writes: Thanks 
for your 3/26 letter concerning 
your adventures with the ZX81 & 
AERCO Drives. I enjoyed your 
letter thoroughly. I have two 
ZX81 /AERCO setups, both quite 
sophisticated. 

One is single sided double 
density, 10 pages on one side. 
By adding a notch plus punching 
two holes in the disk's jacket, 
(called FLIPPIES) I can use 
both sides of the disk by 
manually flipping the disk to 
get 20 pages per disk. I have 
used this scheme successfully 
since the early to mid '80s. At 
that time double density was a 
big deal, double sided rare and 
not affordable. 

My second unit is a little 
newer & is DSDD. It will read & 
write to single sided disks 
formatted on my first unit, an 
advantage to a page oriented 



filing system. Both systems 
will SAVE/LOAD BASIC, machine 
code and data files. Both are 
also equipped with Bill Bell's 
BBDOS . 

The ZX81s are used primarily to 
calculate model rocket 
programs/flight profiles, 
manage the club's data base, 
word processing (I'm on a plane 
now, therefore a handwritten 
letter), income taxes, 
balancing the checkbook etc. 

Unit two has a remote keyboard. 
The rest of the computer is in 
an overhead cabinet. It is 
equipped with twin drives, 80 
column printer, Hunter board, 
64K RAM & CAI 40 column printer 
& stringy floppy (predecessor 
to disk drives) . It is also 
equipped with "remote" switches 
for reset, to switch the 
stringy floppy/disk drives in 
and out, switch printers, etc. 
I have also made internal 
modifications to accommodate 
the remote keyboard, better 
machine code handling, improved 
power supply etc. 

Unit 1 is similar however uses 
a home made 8K RAM Board, 40 
column TS2040 printer, 80 
column thermal printer & Byte 
Back modem. The modem used to 
access electronic mail with my 
work. This unit also has remote 
switches & internal 
modifications . 

I almost purchased a LarKen 
board, but didn't. How does it 
compare to the AERCO? Are they 
still available? Where? 

I also use a rather 
sophisticated & well equipped 
QL, another story in itself. 

I recently purchased for $5 an 
as is ZX81 that works. I plan 
to build 8K battery backed RAM 
& Input/Output "relays". I plan 
to use it to control & monitor 
lighting in my house, using 
Radio Shack 'wireless' light 
switches etc. The light 
switches send "tones" through 
the power lines . 

As you can see, my ZX's are 
6 both well equipped & well used. 



Its advantages over the QL are 
its simplicity. I can repair or 
modify it plus it's easy to 
program . 

The QL on the other hand is 
much faster (very noticeable 
with complex number crunching) , 
superb graphics. A more 
sophisticated word processor 
plus the ability to run IBM 
programs . 

My mainstay & favorite is still 
the ZX81. 

I have written to a man in 
Holland who has a program that 
will allow the QL or IBM to run 
ZX81 programs. I am exploring 
this as it is a way to keep the 
ZX81 alive, i. e. transfer its 
"soul" to newer hardware. It 
will also allow me to "use" my 
ZX at work, on the P. C. I have 
successfully transferred ZX 
files -> QL -> IBM. I look 
forward to doing the same w/ 
programs . 

Thanks for all your news. 

Mort Binstock writes again: I 
finally have some time to 
myself, unfortunately another 
Plane trip. Everythings OK, 
I've also formatted the wrong 
disk myself. Memorial day I 
make you another copy, (defers 
to a disk he sent me and I 
wiped out when I FORMATted it 
by mistake for the ZX81 and 
lost the AERCO ZX81 single 
sided 40 track BOOT program- 
Don) . 

I primarily use Memotext on 
BBDOS. I like it as it is fast 
& has word wrap. My second is 
(or was) WORD SYNC. Its more 
powerful plus can do many 
FONTS. Now a days, when I need 
more horsepower, I use the QL. 

Don't worry about sending 
money, I'm OK & prefer to keep 
our new relationship informal . 
I suspect trades etc. will 
eventually even out in the wash 
& if not, that's OK too. 

I'm an engineer currently doing 
marketing. The product is a 
real high tech computer, 
reminiscent of the CRT controls 



used in the bridges of StarTrek 
& StarWar movies. Work, 
unfortunately, is a sweat shop, 
one deadline after another. I 
am reaching the age, with luck, 
that I could retire in a few 
years. I'll cross that bridge 
when it comes. 

How do you like retirement? 
Your work at Collins sounds 
interesting. I enjoyed your 
tales of inspecting parts now 
in orbit. Also, meeting 
astronauts must have been 
exciting. 

Original 5 1/4 disk drives were 
single density, i.e., only 90K 
on one side, 180K if it was 
double sided. Later, and at 
premium prices, they upgraded 
to Double Density, 180K on one 
side, 360K on two. I don't have 
any single density. Formatting 
an AERCO single density will 
result in 1/2 the disk memory 
and, I suspect, 1/2 the number 
of AERCO "PAGES" per disk. 

I appreciate your typing up my 
4/22 letter and look forward to 
seeing it in print. The only 
update, which I did write you 
about, is I now have the ZX81 
EMULATOR. It's awesome to see 
the ZX81 & some of its programs 
on my QL or my work IBM. I plan 
to transfer some of my ZX over 
to allow more flexibility, 
i.e., using my ZX at work. 

Don, the AERCO can add a new 
dimension to the ZX81. The ZX81 
normally saves to tape both the 
program and its data. The AERCO 
Disk will also do so, However 
you can also, like a more 
sophisticated computer, save 
just the data. The information 
& printouts I sent with my 
first disk transmittal provides 
that information. 

If you have patience & send me 
MasterScribe, I may be able to 
get it to work for you from the 
AERCO, provided its load and 
save commands (for the 
cassette) are in BASIC. I may 
also get it to save data 
separately. 

I do not plan to upgrade the 
single sided system to double 



sided as the drives work well & 
by flipping the disks, I still 
get double sided. 

The AERCO & CAI stringy floppy 
coexist via a manual switch in 
& out. Crude, but quite 
effective. The CAI stringy is 
better than the cassette, 
however, the floppy is much 
better (faster & reliable) than 
either. 

The CAI stringy saves programs 

ol Ctcltcl SGp3.3T3.tOly ONLY. It 3.1 S O 

files in serial "pages" 1, 2, & 
3 etc. You can add one like 4, 
but not reuse an earlier one 
without messing it up. Sort of 
like saving multiply files on a 
cassette . 

I have not terminated my ZX81 
bus, but am aware of it. I did 
"terminate" my keyboard bus to 
allow for reliable operation of 
the remote keyboard. 

I appreciate all of your 
information, LOOK FORWARD to 
further correspondence and to 
reading your articles. 
Hopefully, my personal time 
will increase & I'll get more 
time soon to use my computers, 
pursue my writings, & to just 
enjoy life. 

Mort Binstock 

1150 Windermere DR 

PGH PA 15218-1144 

James H. Caldwell writes: I 
had been given your address 
from a friend who had sold me 
one of his TIMEX 1000 computers 
and he told me you have a 
Newsletter for the TIMEX as 
well as a possible source of 
software and other materials 
for the Timex COMPUTERS. If you 
could get back to me with some 
information about your 
newsletter as soon as possible 
I would be grateful, I am very 
anxious to get any information 
about my new addition to my 
computer collection. 

JAMES H. CALDWELL JR. 
125 BARR STREET 
APARTMENT # 3-B-l 3 
HILLSDALE, MI 49242-1138 



BOB MADARIS writes: In the 
last newsletter (Vol 1 No. 4) 
INPUT/OUTPUT had an article 
about User Groups inviting 
people in their area to join. 
Prior to this, while discussing 
a software purchase with Mr. 
Peter Hale, he mentioned that I 
should find a local users group 
to join. When I told him I had 
not found one in the 
southeastern area with a 
newsletter, he invited me to 
join the NEW ENGLAND SINCLAIR 
QL USERS GROUP (NESQLUG) . 

I joined the group and received 
some back issues of the 
newsletter and the groups 2 
disks library. Having just 
joined, I am already very 
pleased with what is on the 
disks. One of them is full 
(1440 sectors) . 

The point I am trying to convey 
is: If you are out there alone, 
as I was, find a user group. 
You don't need to wait until 
they find you. Pick out one you 
see mentioned in T/SNUG or 
UPDATE and join. It really will 
not matter how far they are. 
The newsletter and their 
libraries are enough. As the 
saying goes "USE IT OR LOSE 
IT ! " 

The Directory to Printer 
program for the QL in that 
issue is a good one. An 
alternative for those with TK2 
is to use DIR/PRT. This will 
send the directory of the 
default device to serl. Note 
the back slash character (\) is 
used. For several TK2 commands, 
it will open and close channels 
or files. WDIR, WSTAT, and STAT 
work in the same manner. Set 
the default device with 
DATA_USE Flp2_, and set the 
printer buffer up with PRT_USE. 
These should be included in 
your boot up Boot. If you wish 
to send the device directory to 
a file, you only have to use 
DIR\devicename_f ilename (ex. 
DIR\RAMl_Myf ile) . No opening or 
closing to do. It will print 
the directory to a file in the 
same way as to the printer (or 
imported into Quill) . This is a 
good way to get hard copies of 
8 your directories (Disk or Mdv) . 



You guys keep up the good work. 

BOB MADARIS 
RT. 1 BOX 1497 
TRAFFORD, AL 35172-9628 
Tele: (205) 681-5751 

Gill Parrish writes: Dear 
Don, I don't think I've written 
since March (but then again you 
haven't written since 
February!), so this is just an 
"I'm still alive and living in 
Tulsa" letter. 

I told you last time that Bob 
Swoger had contacted me, and 
told me he had located a 
"Zebra" board and equipped it 
with a Spectrum ROM to work on 
my TS2068 cassette system. It 
did not strike me until later 
how perfect his timing turned 
out to be. My wife, son and I 
happened to have a trip 
scheduled to Scotland within a 
week or two. Obviously, the 
United Kingdom is the Spectrum 
capitol of the world, but I 
never thought about looking for 
Spectrum items until I was told 
my TS2068 was about to become a 
"Spectrum compatible". 

So, I had the opportunity to 
buy a couple of Spectrum 
packages; one was a collection 
of four games which had 
recently been marketed 
separately, and the other was a 
mega - collection of thirty 
such games including Hacker, 
Ghostbuster s , EnduroRacer, 
Rampage, etc. (I saw no non- 
game software for the Spectrum 
in any shops, except for one 
vendor having a single copy of 
Tasword Two.) I also picked up 
the April copy of Your Sinclair 
("YS), which I gather is the 
leading Spectrum magazine. It 
comes with a tape of programs 
glued right on the front cover, 
and that collection also seems 
to include some good stuff. YS 
contains the ads of several 
vendors from which Spectrum 
software can be mail - ordered, 
if one is willing to incur the 
extra postage and handling 
charges (in some cases an 
additional 2.50 British Pound - 
- about $4.40 — per tape to 
get the stuff to the U. S. ! A 



subscription to YS is also 
available but is similarly 
expensive for the U. S. folks: 
the normal 26.40 Pound 
subscription price (which does 
at least include the monthly 
tapes) jumps to 40.80 Pounds 
for citizens of other ECC 
countries, and then to 53.05 
Pounds (almost $93.00) for U. 
S. readers! That's a tad more 
than I want to incur, 
especially for a British 
magazine I frankly find hard to 
decipher at times (to many "in" 
jokes and other cultural 
oddities) . 

If you might be interested in 
ordering something from YS and 
need a copy of the ads, let me 
know. And are you interested in 
any of this tape - based 
Spectrum software? [YES! Ed.) 

I picked up a Kempston 
compatible joystick interface 
too, fortunately. I think you 
had warned me previously about 
needing such an adapter to work 
with Spectrum stuff (without a 
disk interface); Bob's package 
contained a similar warning, 
but it didn't arrive until 
after I left. Anyway, I passed 
up a Kempston adapter in one 
store, but something in my 
memory kept nagging at me, and 
I later picked up one in 
another town. 

For what it was worth, I ended 
up writing an article for the 
Toronto group ' s newsletter 
about the Spectrum scene in 
Great Britain. I had never 
written one for Toronto (while 
I had already written one for 
your newsletter) , so I thought 
I needed to provide one as a 
good Club Member. 

I thought originally when I got 
home and opened Bob's package 
that I had a problem. I very 
much liked the design of the 
Zebra board, since it 
disappeared into my unused game 
port and did not detract from 
the looks of the unit. However, 
Bob had indicated the command 
to go into Spectrum mode was 
"OUT 244 , 2" but all that 
yielded was an "Integer out of 
range" error. I tried removing 



and re-inserting the board, 
cleaning the contacts, etc. but 
the error message remained 
constant. I wondered if my unit 
had a defective game port; I've 
never used that port for 
anything (only recently did I 
see a Timex Command Cartridge, 
which was the first proof I had 
Timex really made any) , and I 
had no way of testing it. Then 
I wondered if Bob transposed a 
digit in the command or 
something. Playing with the 
"24 4" number produced no 
meaningful result, so I tried 
changing the ",2" to a ",1". 
That also produced nothing 
usable so on a whim I tried 
",3" — and that did the trick. 
The command "OUT 244,3" put the 
computer into Spectrum mode 
(complete with Spectrum 
copyright screen) . I was then 
able to try some Spectrum 
software and the board seemed 
to work fine. [I can't believe 
I did that! Sorry! Ed.] 

Separately, I bought a printer 
interface cable from Byte - 
Back; I gather that company is 
liquidating remaining 
inventory, so I only paid half 
price for it. They sent the 
software to get the cable to 
work with my TS2068 (and it 
does indeed work fine) . But I 
wonder if there is separate 
software that would get it to 
work with my TSlOOOs? 

I'm glad the organization is 
doing so well. T/S users are 
going to need a strong central 
organization in the next few 
years, so I'm glad the 
foundation is being built now! 

Gilliam Y. Parrish 
Route 1, Box 705 
Beggs, OK 74421 

Joseph Rampolla writes: Many 
thanks for sending the copies 
of the newsletter with my 
article on the BYTE-BACK modem. 
It is great to see that you and 
others involved in the group 
are still serving the needs of 
us TIMEX/Sinclair diehards! 
Keep up the good work! I wish 
you and all our T/S friends a 
Happy Thanksgiving and a Merry 
Christmas! ! ! 



Joseph Rampolla 

2 638 E MONUMENT ST 

BALTIMORE MD 21205 



NEWS ITEMS 



Dayton ComputerFest 1992 

by Donald S. Lambert 

Friday 08 28 1992 at 11:27 AM 
(Indiana time) I backed out of 
the driveway and left for the 
Dayton ComputerFest. There is a 
different route I could have 
taken and missed all traffic in 
Ft. Wayne but with my tendency 
to get lost I did not take it 
so at the end of the first hour 
I had traveled only 40 miles. 
The route I took was to go 
south on 1-69 to Highway 30 
East and to take that to 1-75 
south. After entering 1-75 I 
found a posted 12 mile stretch 
of the interstate that had one 
lane of traffic but what 
traffic there was traveled 
fairly briskly until there were 
two cars ahead of me that kept 
varying from 45 to 60 miles an 
hour. But luckily they exited 
before the end of the 
construction and then traffic 
was moving along briskly. It 
was 169 miles to the Red Roof 
from my house. 

Finding the Red Roof Inn was 
very easy since it is the first 
exit south of 1-70 or exit 60. 
Besides you can see the motel. 
I arrived at 2:50 PM Indiana 
time or 3:50 Dayton time and 
checked in and returned to the 
office to find out if any 
others had arrived but no luck. 
I walked around a little and 
returned past the motel office 
and there was rapping on the 
glass and there was Paul 
Holmgren. From that moment on I 
was T/Sing until I left the 
Hara Arena on Sunday. 

Frank Davis had not arrived so 
Paul and I visited and Bill 
Angel had came following Paul 
in his pickup. When Frank and 
Carol Davis arrived they 
discussed going over and 
setting up and we went out to 
dinner. We went to Bob Evan's 
and those that ate in our group 



were Paul Holmgren, Carol and 
Frank Davis, Bill Angel, and 
myself. Of course there was a 
lot of talk and it was decided 
to get together for breakfast 
and meet at Frank and Carol's 
room at 7:30 Dayton time. (I 
did not change my watch from 
Indiana time) . 

After they went to Hara Arena I 
went back to the office and the 
clerk did read off all the 
names of those that had 
reservations but had not 
arrived. 

But that information was after 
the desk girl took care of a 
college age girl that came in 
looking for a wedding party 
that she was trying to find so 
she could go to the rehearsal 
supper. She was starting to get 
suspicious and said "if it 
isn't this weekend I will shoot 
myself. I drove for 4 hours 
from West Virginia!" The desk 
clerk helped find the right 
date, yes two weeks later, and 
the girl left. I asked her if 
she was going to keep it a 
secret. "No way am I going to 
tell anyone!" she said. 

Later I recognized the van that 
John Pederson used to drive his 
brother, Bill, around. I 
visited with them until Frank, 
Carol, Paul and Bill returned 
from setting up. Then we all 
visited. 

At breakfast Saturday morning, 
we had quite a gang at Bob 
Evans and those that I got 
names of were: Paul Holmgren, 
Carol and Frank Davis, Bill 
Angel, John and Bill Pederson, 
Neil Schultes, Bill Heberlein, 
and myself. Much talk and lots 
of eating. 

We made up a convoy going to 
the fest and Paul Holmgren led 
the way followed by Bill Angel, 
then the Pedersons, then 
myself and then Frank and Carol 
Davis. I was almost bared from 
entering early to set up the 
CATUG and T/SNUG table since my 
ticket was the wrong color but 
fast talk and confusion got me 
in. 



The table line up in the T/S 
area was from left to right: 
the CATUG and T/SNUG table 
which I presided over then a 
narrow passage way to use to 
get behind the tables and then 
Frank and Carol. Then it was 
Paul Holmgren and then Bill 
Angel and then the last table 
which was the SMUG table manned 
by Bill Heberlein and Neil 
Schultes. The passage way made 
a good spot for Bill Pederson 
to sit. 

I got set up and after I got 
the DLAN greeting bulletin 
Steve Cooper and Bob Swoger 
made up going on my monitor 
Paul brought over his color 
monitor, mine was a green 
screen, and the DLAN program 
ran in colour with a nice 
repeating display. One IBM type 
wanted a copy of the program 
until he found out it was for 
the TS2068. We had a few new 
comers to the T/S computers and 
a few that were possibly 
interested in getting back into 
it again. 

When things got slow I flea 
marketed. First the T/S tables 
and then the regular flea 
market. I found a few bargains, 
I bought a Laser PC3, which is 
a dictionary with memory and a 
total of ten features from the 
main menu. There is 32K of 
memory available for all the 
features. It has a serial port 
for uploading and the software 
for an IBM to capture the 
files. Frank Davis has a 
Compumate which is the same 
machine but under a different 
name and he has used it to 
upload to a TS2068. Also the 
PC3 has a cassette port but it 
will only work if you use a 
stereo plug with a mono jack to 
plug in the mono cable to the 
tape recorder. Currently it is 
powered by four AA batteries 
but plan to go to a 110 volt 
adapter. I also bought a 3.5 
drive and got the two 
connectors to enable me to use 
5.25 power supply and ribbon 
cable. I tested it and it seems 
to work, at least it will 
FORMAT 80 tracks and the total 
cost was $13.00 including the 
adapter connectors. 



Since Paul lead us by a 
different route and I did not 
have a map with me we again 
convoyed back to the motel . 
Distance is around six miles. 
Frank had made prior 
arrangements for all T/Sers to 
meet for dinner. 

Bill Pederson showed off his 
first step to get his TS2068 
system going and that is using 
an IBM case to house the disk 
drives and power supply and 
mother board. Frank Davis is 
working on a board for the 
interface . 

We met and this time we went to 
Ponderosa for dinner. The gang 
that went Saturday evening was 
Gene Wilson, Dave Bennett, 
Keith Watson, Mark Steuber, 
Steve Spaulding, John 
Impellizzar, Dennis Donahue, 
Don Walterman, John Kaczor, 
Carol and Frank Davis, Bill 
Angel, Paul Holmgren, Bill and 
John Pederson, Mel LaVerne, Tim 
Swenson, Manny Quentarro, Gary 
Ganger and wife, Paul Schwab, 
Ted Knyszek and myself. Much 
talk and confusion, the 
waitresses got lost on who got 
what but we all ate. 

We moved here and there after 
supper in our discussions, 
Carol tracked me down to tell 
me I had a phone call. It was 
Jay Shepard in Iowa wanting to 
know how the fest was and 
asking about a piece of 
hardware (b & w video camera) I 
hadn't seen. Sunday we went to 
breakfast at the Cracker Barrel 
and in attendance was Ted 
Knyszek, Gene Wilson, Toby 
Radcliff (he was in a movie) , 
Bill Engel, Neil Elans, Jon 
Kazora, Carol and Frank Davis 
and myself. 

The following signed the 
register at the CATUG and 
T/SNUG table: Carl Molle, Mel 
LaVerne, Jon Kaczor, Tim 
Swenson, M. A. Quintero, Doug 
Gillespie, Rene Bruneau, Harold 
S. Crum, Kipo Reynolds, Jeff 
Taylor & son Alex Taylor, Randy 
E. Randall, Toby Radloff, Jack 
Fetter, Buford Schaber, Conard, 
Miller, Dave Bennett, Les 
Brown, Don Walterman, John J. 



Impellizzeri, Dennis Donahue, 
Edward Gase, Dean King, Frank 
and Carol Davis, Keith Watson. 

On the T/SNUG side, I got two 
T/SNUG members and their 
address changes and will supply 
the names to those that are 
working on the membership list. 

While the quantity of members 
coming through was less than 
last year they seemed to be 
more dedicated. Several 

r*v * -»^- y-v fi p /-^ A 4- a -v q +- t r"i f* np 

SPECTRUM and ZX81 capabilities 
for the QL and IBM computers. 
Many said that the best feature 
of the T/S computers was the 
user friendly programming 
abilities . 

There was not the hardware and 
software or even the hard copy 
that was available at prior 
fests. But there is still all 
of that available but not in 
the quantity of the earlier 
years, nor has all new stuff 
dried up. There are a few hardy 
souls still programming new 
stuff and improving the earlier 
stuff. And there are a few of 
us that will hang onto our 
Classic T/S computers until the 
last moment. A lot of hard copy 
is available from the various 
users groups. 

Was the trip worth it? A 
definite yes! I learned more, 
made some new contacts and 
renewed old ones. If there is a 
T/S computerfest next year I 
plan to attend. I will start to 
lay back some money for 
expenses. Let's face it, the 
T/Sers are fewer but they are 
more dedicated than the other 
users groups. And most 
important to me, they seem to 
be far more friendly and 
helpful than the other computer 
type users groups . 

In closing - I may have missed 

a name and even as bad if not 

worse misspelled a name. And 

more happened that I was not 

involved in; I did try to 

recount the high spots of what 
happened. 0/0 

12 



ITEMS AVAILABLE FROM T/SNUG 



It has come to our attention 
that some LarKen Users are 
using something less than 
Version 3 firmware. T/SNUG will 
supply updated EPROMs, SYSTEM 
DISKS, and MANUALS. 



If you have a mismatch between 
you LarKen DOS EPROM and your 
Western Digital Controller 
chip, we will send you the 
correct one for free on behalf 
of our friends Rod Gowen of RMG 
and Larry Kenny of LarKen. You 
should be using L3 EPROMs with 
WD1770 controller chips or L3F 
EPROMs with WD1772 controller 
chips. Check it out! Call in 
requests to Bob Swoger at 
W708-576-8068 H708-837-7957 

SPECIAL DEALS AND BUYS 



NAP_Ware (Nazir A. Pashtoon's 
new endeavor) announces the 
availability of all Timex or QL 
PAL (Programmable Array Logic) 
chips. If interested, call him 
evenings at 708-439-1679. 



LogiCall Integrated Software 
Ensemble easy operating system 
for LKDOS in both TS2068 and 
Spectrum modes includes 
LogiCall 5.0 TASWORD TWO V2.7, 
VU-CALC VI. 3, VU-FILE VI . 2 and 
MTERM2 Drivers modified for 
LogiCall, DISKS. Bl TAPES. Bl 
Steprt.Bl HEADER. BT (tape 
header reader by Nazir 
Pashtoon) FORMAT. B_ MOVE . BL and 
more all on 2 SSDD disks for 
$5. You must specify your LK- 
DOS EPROM version. If you 
already have a copy you are 
encouraged to distribute copies 
to other LarKen LK-DOS users 
for as you see by the price we 
are not in the business of 
making money on it, just making 
LarKen 's LK-DOS even better! 



If you are a LarKen LK-DOS 
owner and would like a SPECTRUM 
V2 kit for your system, we will 
supply an EPROM, socket and 
74HCT32 for $12 which includes 
shipping and handling. The 
install instructions are in 
your LarKen manual . We shall 
not be responsible for your 
install job. AERCO owners need 13 



only the SPECTRUM EPROM for $10 
$10 is forwarded to LarKen. 



So you like to fly? The 747 
Flight Simulator for Spectrum 
by Derek Ashton of DACC sold 
over 40K copies in EUROPE. 
Requires Spectrum Emulator. At 
this time supplied on LarKen 
SSDD disk only for $10 which 
goes to Derek Ashton, now 
working at MOTOROLA with Bob 
Swoger. Call in requests to Bob 
at W708-576-8068 H708-837-7957 

LIBRARY 



%%%%%%%%%%%%%%%%%%%%%%%%%% 
TIMEX/SINCLAIR 
PUBLIC DOMAIN LIBRARY 
AVAILABLE AS OF 01 JUNE 1991 
Contact Bob Swoger 
708-837-7957 
for details. 
%%%%%%%%%%%%%%%%%%%%%%%%%% 



ARTICL 




The BYTE -BACK MD-68 MODEM 

by Bob Swoger 

The BYTE -BACK MD-68 Modem beat 
Anchor's WESTRIDGE 2050 to the 
market place and therefore was 
the first modem used on my 
TS2068. It has some interesting 
features not found on the 
TS2050. The ability to receive 
BASIC programs from non-TS2068 
computers in such a way as to 
allow the editing of these 
programs into working TS2068 
tokenized programs is the most 
outstanding feature of this 
modem package. 

This unique ability is provided 
by Spectrasoft ' s SpectraTERM 
VI. 3 software. When the receive 
buffer is open, the REM 
transfer mode is in effect, and 
a line number between 1 and 255 
along with a REM token is 
placed in front of each 
downloaded line. One need only 
edit each line starting at the 
bottom and the program can be 
turned into TS2068 BASIC. This 
one feature alone made it an 
important device to have on 
hand in my computer room. 



A built-in RS232 port for the 
printer or even another (read 
faster) modem, is another 
feature of the BYTE -BACK modem. 
One day in the future I might 
try to use the serial port to 
run a Terminal Node Controller 
for Amateur Radio Packet 
communications. The software 
for printer operation from that 
port is not provided. 

The ad for this modem can be 
found elsewhere in this 
newsletter. Make Dave an offer 
if you don't have one of these 
fine modem packages. 

Below is a LarKen driver for 
SpectraTERM. 

SPCTRA. Bl 

10 CLEAR VAL "61183": LET h=C 
ODE "d" : PRINT "SpectraTERM 1.3 
0" 

20 PRINT "© 1984, Spectrasoft 
Inc. " 

40 PRINT "Licensed to Byte-Ba 
ck Co." 

60 PRINT ,, "Program loading. 

it 

80 RANDOMIZE USR h: LOAD "spc 
tra.Cl"CODE 
110 CLS : PRINT "%%%%%%%%%%%%% 

9-9- 9- 9- 9- 2- 2- 2- 2- 9- 5- 2- 2- 2- 9- 2- 2- 2- 2- " I I "H\ DYTT" 
'o'o'o'o'o'o'o'o'o'oo'o'o'o'o'o'o'o'o \J ) LAI 1 

" "1) ENTER SpectraTERM" ' 1 "2) R 
ETURN TO SpectraTERM"' 1 "3) CLEA 
R BUFFER & RETURN '"'"4) SAVE S 
pectraTERM" ' ' "5) STOP AND ENTER 
BASIC" ' ' "%%%%%%%%%%%%%%%%%%%%%% 
%%%%%%%%%%"'■" RANDOMIZE USR 61 
184";TAB 43;" CLEAR BUFFER & RE 
TURN "'"' RANDOMIZE USR 61187"; 
TAB 43; "RETURN TO SpectraTERM" 
120 INPUT "Enter selection >"; 

A 

130 IF A>5 THEN GO TO VAL"110" 
140 GO TO VAL "200+ (10*A) " 
200 GO TO 9998 

220 RANDOMIZE USR VAL "61187" 
222 GO TO 110 

230 RANDOMIZE USR VAL "61184" 

232 GO TO 110 

240 GO TO 9990 

250 STOP : GO TO 110 

9992 RANDOMIZE USR h: SAVE "SPC 
TRA.B1" LINE PI 

9993 RANDOMIZE USR h: SAVE 
"spctra.Cl"CODE VAL "61184", VAL 
"3241" 

9994 GO TO 110 

9998 RANDOMIZE USR h: LOAD "L.B 
1" 



MINERAL OIL 
and the 
PRINTER RIBBON 

by Abed Kahale 

It seems that every time I am 
ready to use my printer, the 
printing looks faded; time for 
new ribbon; NOT SO. The printer 
is sitting idle and the ink is 
drying out especially in the 
winter months. 

A few years ago George Chambers 

in f ho Qi nlr-T.i nlr N/T, wrnfp a 

note on inking the ribbon; a 
couple of drops of printer 
ribbon ink on the ribbon and 
re-wind the ribbon manually 
or 

by moving the print head from 
one end to the other while the 
printer is OFF. (I got my ink 
from RMG Enterprises but it is 
also available from office 
supply houses) . That worked 
fine and the printing was 
darker than a "new" ribbon. 

But that also dries out in a 
while; the next step was to go 
to the Encyclopaedia Britannica 
and find out what printing 
houses use for an ink recipe: 
for quality printing such as 
magazines with photos they add 
either mineral oil or 
glycerine. My medicine cabinet 
included both. I used a couple 
of drops of mineral oil because 
it is a more stable chemical 
and also is a lubricant for the 
print head pins for longevity. 

If you are a tinkerer like me, 
pop the ribbon cartridge open 
and put the oil and/or ink on 
the foam rubber wheel inside. 
Now I can print all day and 
once a month and I get the 
darkest printing I ever had. 



MINERAL OIL 
and the 
EDGE CONNECTOR 

by Bob Swoger 

Before Abed joined the CATUG, 
we ran an article on how the 
Motorola Sinclair Users group 
kept their ZX80 and ZX81 
machines going with no crashes 
while others in the U.S. were 
experiencing crashes. We tried 



to tell the others through 
newsletters but couldn't get 
into print. We took advantage 
of the situation by buying up 
the machines of disgruntled 
owners and applied high 
viscosity mineral oil to the 
connectors between the ZX 
machine and its RAM pack, the 
very same thing we at Motorola 
used on the connectors of our 
television and communication 
equipment. The result was no 
more crashes! 

When using high viscosity 
mineral oil on your equipment, 
make sure you get it only on 
the P.C. board and connector, 
not anywhere near the rubber 
bubble pad of your keyboard as 
it will ruin it, causing any 
rubber to swell and become 
distorted! 

Where do you obtain high 
viscosity mineral oil? From 
your Drug store, it can be 
found with the other laxatives! 



RESETTING TRACK 0 
AND OTHER TWEAKING. 

by Don Lambert 

I wrote this originally a 
couple years ago and a recent 
conversation with Bob Swoger 
discussing resetting track 0 on 
a drive brought this to mind. 
While we both have successfully 
reset a Tandon TM 100-2A drive 
to track 0 again we both used 
different methods. While I 
haven't tried Bob's method I 
have heard/read of the set 
screw that locks the head 
assembly to the track stepping 
mechanism loosening which leads 
me to believe that his method 
might be best to use since you 
are moving the head back where 
it had been originally. 

If a drive will FORMAT a disk 
and SAVE a file to it and can 
LOAD the files but no other 
drive will LOAD the files and 
this drive cannot load other 
drives' files than either track 
0 is off or else speed is off. 
(In early days of computing 
some computer manufacturers 
deliberately set either track 0 
or speed off so that you had to 15 



use their repair services and 
had to buy disk drives from 
them.) All drive resetting 
methods require the disk drive 
power supply, a few tools and a 
working computer and disk drive 
interface . 

*** One word of CAUTION *** 

IF THERE IS NO TERMINATOR 
RESISTOR IN THE SOCKET LOCATED 
BETWEEN THE TWO I.C.S IN LINE 
LEFT TO RIGHT WITH TP13 NOT 
ONLY WILL IT BE IMPOSSIBLE TO 
SET SPEED BUT ALSO IMPOSSIBLE 
TO SET THE TRACKING. 

I had a drive that just seemed 
to want to vary the speed and 
also would not take a track 
adjustment until I realized 
that the resistor was missing. 

* Another word of CAUTION * 

It. might be safer to wrap 
masking tape on the screw 
driver shaft to insulate it. 
Also it is best to have a disk 
in the drive all the time that 
the spindle motor is running to 
put a load on it like when it 
is in use. 

The first thing I did was check 
and reset the speed of the 
drive motor. For that you will 
need a fluorescent light and a 
small blade screwdriver to turn 
the adjustment screw in the 
potentiometer on the board on 
the end of the drive and you 
will need a jumper, a piece of 
insulated wire with a flea clip 
on each end to go between the 
square pins on the top board. 
With the disk drive on the 
table top side up and the drive 
door facing you, you will find 
a square pin located just to 
the right of the left hand 
board mounting screw by 5/16 of 
an inch and about a 1/16 of an 
inch closer to you than the 
screw and labeled TP10 (TP = 
test point) with the letters 
upside down. Fasten one end of 
the flea wire with the flea 
clip to the square pin. Up at 
the other end of the board is a 
row of connectors and the one 
labeled 11 will be directly in 
line with the square pin TP13 
which is 5/8 inch this side of 
the connector. Fasten the other 
end of the wire using the flea 



clip to TP13 square pin. The 
purpose of the wire is to cause 
the disk drive motor to turn on 
when you turn on the power. 

Speed is best set with a disk 
in the drive. I set the speed 
before I connected the 
interface cable to the drive. 
Now with the drive power cord 
plugged into the disk drive 
turn the disk drive on its side 
to expose the flywheel of the 
disk spindle with the paper and 

4- "K /~v "Ko-k-o nri nfaH r\r\ *i +• DynACoH 

to the fluorescent light and 
watch the outer ring (60 cycle) 
and if the bars are seen to go 
either clockwise or 

counterclockwise then turn the 
screw in the end of the 
potentiometer on the back board 
(the motor drive board) . The 
bars may waver but unless there 
is a definite movement in 
either direction the drive 
speed is correct, any movement 
should be seen in fifteen or 
twenty seconds. When the speed 
checks right remove the jumper 
between TP10 and TP13. 

To reset the track stepping 
mechanism if the drive will not 
read track 0 (the directory of 
files) you will need a larger 
screw driver (insulate the 
shaft of the screw driver with 
tape) and an alien wrench size 
.109 or 7/64 of an inch. Turn 
the drive over and you will see 
down near the disk flywheel a 
pair of alien screws which are 
sealed on the side with green 
sealing material. Loosen the 
two screws and turn the drive 
back right side up and on the 
back of the drive above the 
disk motor board is a metal 
projection that has a slotted 
screw head in an oblong opening 
and with the drive door facing 
you the slotted screw will be 
on the right side of the metal 
projection. To the left and 
slightly towards you is another 
alien headed screw also with 
the green goop on the side of 
the head. You might make a mark 
on the plate next to the screw 
the location of the screwdriver 
slot for reference. Loosen that 
alien screw and test with the 
screw driver to see if the 
turning the screw moves the !6 



metal a trifle. The screw only 
has about a 180 degree 
adjustment (some drives will 
have 360 degree adjustment) . I 
had the best luck adjusting by 
turning the screw to the most 
counterclockwise position. 

The reason to insulate the 
screwdriver is to prevent 
touching the bare pins that 
stick out above the adjusting 
screw. 

Now with the interface cable 
plugged in and the drive power 
supply plugged in select a disk 
SAVEd on a good drive (be sure 
to use a copy in case something 
happens to the disk) and first 
try to CAT the disk (I was 
using a TS2068 and a LarKen 
interface) when you get an 
error watch the metal slide and 
just turn the screw enough 
clockwise so that you see it 
barely more . Then once more re- 
try the CAT and repeat until 
suddenly the entire directory 
is listed as it should. I 
usually made one or two very 
slight more adjustments and 
then tried to LOAD a file on 
the first of the directory and 
then one on the last of the 
directory. If both had LOADed 
on a good drive and they LOAD 
on this one then power down and 
tighten the three alien screws 
and then re-try the CAT and the 
first program and the last 
program. If they LOAD you have 
it reset. With the LarKen and 
the TS2068 on failure to CAT 
you will get a CRC error and 
then garbage for the directory. 
Then as you get close to the 
track with the adjustments you 
might see one or two of the 
first files named then garbage, 
then suddenly all files appear. 
While the drives are rather 
mysterious (to me) in how they 
work it was rather more 
mechanical to make the 
adjustments. Of course other 
defects are handled 
differently. 

I had one drive in which the 
track 0 switch was off. What it 
did was give a series of 
thunking sounds as it tried to 
read track 0. With the back of 
the drive facing you is the 



projection that holds the track 

0 adjusting mechanism and to 
the right of that and slightly 
above it is a slotted screw 
with green goop on it. I 
adjusted that and the drive 
stopped clunking and loaded the 
directory. However, on another 
drive that did not help. I 
removed the spindle motor and 
then I could adjust the micro 
switch located where the track 
st epp i ng me chani sm coul d 
actuate it. Whether that 
adjustment, was a fluke or not 
the drive could be reset on 
track 0 and it worked. While 
all the Tandon TM 100-2A drives 
look alike at a distance, close 
examination does reveal 
differences. I have one Tandon 
with a soldered in gang DIP 
switch in place of the DIP 
socket normally used for the 
jumpers for drive selection. 
Also, I have a drive labeled as 
a Texas Peripheral Co. but they 
used a Tandon frame including 
the TANDON name in the casting. 
But the other parts are not 
similar to the Tandon. 

1 now turn you over to Bob: 
******************************* 

Don mentioned that I fixed a 
drive with the stepping motor 
set screw only but I wish to 
tell you that it took hours to 
accomplish. These drives 
probably fail in the first 
place because the screw that 
holds the stepping mechanism to 
the shaft of the stepping motor 
was too loose. It should be 
tightened first. 

Don mentioned in his last 
paragraph that he heard the 
drive make a 'series of 
thunking sounds'. This sound 
can be heard if the head tries 
to advance past track 83 or if 
it fails to activate the end of 
travel microswitch while 
seeking track 0. There are 
programs written with a bug 
that tries to send the heads to 
track 249. Since the drive can 
only travel to track 83, the 
head mechanism bangs until you 
turn off the system. If the 
head carriage, trying to travel 
past track 0, doesn't activate 
the end of travel microswitch 
to let the system know that it 17 



has arrived, the head carriage 
will bang until you turn off 
the system. These two 
circumstances will cause the 
stepping motor shaft to slip 
inside the band spool if the 
set screw is the least bit 
loose. 

The purpose of the screw Don 
mentions in his last paragraph 
is to push the head off the 
microswitch and back unto track 
0. This screw is set to be just 
short of resting against the 
head carriage when it is over 
track 0. 

Before loosening the three 
screws that hold the stepping 
mechanism in place, remove the 
top PC board and tighten the 
set screw on the stepping motor 
shaft. Then proceed as Don 
describes . 

If you have a oscilloscope or 
capacit ively coupled AC 
voltmeter handy, you may wish 
to make a final adjustment of 
the track setting screw in the 
following manner. Prepare a 
disk using George Chambers ' 
utilities that has been 
formatted and saved on a known 
good drive. Save a program on 
track 20 (middle track of a 40 
track drive) that is about 5000 
bytes long and LOADs itself 
continuously. 

Place either a capacitively 
coupled AC voltmeter or 
oscilloscope between TP 3 and 
ground. Load in the program and 
turn the track setting screw 
for maximum output on the AC 
voltmeter or both maximum 
amplitude and best symmetry on 
the oscilloscope. You will note 
that the signal level goes up 
and down, Use the lower level 
signal to set the screw for 
maximum as it is the signal 
from track 20. Tighten the 
three set screw down and check 
that the setting didn't move. 

If you do a VERIFY while 
watching the AC voltmeter or 
the oscilloscope you will 
notice that the- output level 
goes down considerably as the 
heads travel to track 83, this 
is normal. It has to do with 



the fact that the data passing 
the head at track 83 is 
traveling so much slower than 
the data passing the head at 
track 0. An AGC circuit levels 
the output signal before it 
leaves the drive. 

Thanks to Mark Farrell of the 
Glen side Color Computer Club of 
Illinois for the above 
education. — ==Bob Swoger== — 



WRITING MORE EFFICIENTLY 

BY BILL HARMER 

I confess, I am a ZX81/TS1000 
user still. A real survivor. 
Although I have promised myself 
to program only (or mainly) on 
the ZX81/TS1000 in machine 
language, BASIC still is my 
main language on this computer. 
The amazing thing is that there 
are still things to discover in 
BASIC programming for the 
ZX81/TS1000. 

The writing of a sorting 
routine for the ZX81 usually 
means the bubble sort or at 
least the flagged bubble sort 
as given in the book by Morse, 
et al., "THE ESSENTIAL GUIDE TO 
TIMEX/SINCLAIR HOME COMPUTERS", 
a ZX81 and TS2068 BASIC 
programmer's touchstone for 
comforting solutions. Well, 
Byte magazine in their April 
1991 issue published an 
improved version of the flagged 
bubble sort and with a little 
adaption (from True BASIC to 
ZX81 BASIC) , it was possible to 
test it and find that it did 
indeed run faster than the 
flagged bubble sort. I suspect 
it is even faster on much 
bigger arrays than I tested its 
sorting on. 

Another thing that has helped 
in the saving of RAM in 
ZX81/TS1000 programs is the use 
of flags as in the flagged 
bubble sort, as either 0 or not 
0 (that is 1) as the two 
possibilities, like so: 

instead of : 
100 IF FLG=0 THEN GOTO 1000 
110 IF FLG=1 THEN GOTO 2000 



use: 

100 IF NOT FLG THEN GOTO 1000 
110 IF FLG THEN GOTO 2000 

These operators can be combined 

with others in compound 

conditions as in: 

120 If PG AND X>10 THEN GOTO 

5000. 

Speaking of conditions after 
IF, another discovery of a year 
or so ago was that the 
ZX81/TS1000 can take: 
200 IF X=5 THEN IF A=2 OR A=4 
THEN GOTO 700 

This is equivalent to something 
that the ZX81 BASIC does not 
seem to like to accept: 
200 IF X=5 AND (A=2 OR A=4) 
THEN GOTO 700, 

One of the problems with the 
ZX81/TS1000 and most BASIC 
interpreter other than that of 
the QL, (SuperBASIC) is that if 
you put a loop deep in a 
program, after a lot of other 
statements, then it executes 
more slowly. However, a simple 
POKE and some fiddling with its 
position in the program 
listing will allow you to get 
a GOTO equivalent that is 
almost as fast as a GOTO when 
used at the beginning of a 
ZX81/TS1000 BASIC program. 

There is little more to explain 
than that, but the POKE in 
effect POKES the 1st byte of 
the NEXT-LINE ZX81/TS1000 
system variable. It is a local 
GOTO, that can go as far away 
as about 255 bytes in the 
program listing only, but since 
all fast loops can't be put at 
the start of your BASIC 
program, this will help speed 
up the ones that can't be given 
a high enough priority to be 
put there. Maybe a sort of 
search routine might fall into 
that category, or simply a 
variable array initialization 
routine. One variable 
initialization routine that 
saves RAM is: 

instead of : 

8800 LET B$=" 



8810 LET X$="XXXXXXXXXXXXXXXXX 
XXXXXXXXXXXXXXX " 



8820 LET Y$=" 



use : 
8800 
8810 
8820 
8830 
8840 
8850 
8860 
8870 



LET B$"~" 
LET X$="XX" 

LET Y$=" " 

FOR N=l TO 4 
LET B$=B$+B$ 
LET X$=X$+X$ 
LET Y$=Y$+Y$ 
NEXT N 



Initializing the graphic 
strings is done by starting 
them at a value and then 
doubling their length. This 
runs infinitely quicker than 
the following: 

8840 LET B$=B$+"-" through a 
loop 32 times! 0/0. 



AW 



To put an AD in the Computer 
related section of the BBS, put 
a file in your account with the 
filename. filetype: COMPUTER. ADS 
! ! ! Our ADS are free ! ! ! ! 
Your ADS appear in FOUR 
different newsletters! 



WANTED : 



ON 921125 



%0-9.e.2-e-0-0-2-9-2-S-9-2-2-9-9-S-2-2-9-9-2-0-9-9-9-2-9-9-9- 
^^^'o'o'o'o'o'o'o'o'o'o'o'o'o'o'o'o'o'o'o'o'o'o'o'o'o'o'o 

Used LarKen Disk Drive 
interface for TS2068. Call Bob 
during the week at 708-576-8068 



WANTED : 



ON 921125 



O-Q.9-9.9.9.9-9-2-9.0.9-9.0-0.9-2-0.9-0.9-2.2.9-9-9.0.9-9.2-9- 

LOOKING FOR RARE SINCLAIR ITEMS 
- ZX80 - SINCLAIR WATCH, 
TV, JOYSTICK, ORIGINAL BOXES, 
WILL BUY ANY ITEMS IF CHEAP, 
MAGS, NEWSLETTERS, BOOKS. 
USED QL, TS2068, TS1000, TS1500 
GILLESPIE, JAMES DOUG 
5860 CALAMIE DRIVE 
PARMA HIGHTS OHIO 44130 



WANTED : 



ON 921125 



° 2-9-2-9-2-9-9-9-2-9-9-2-9-2-9-2-2-9-2-2-2-2-9-2-2-2-2-2-2-2- 
'o'o'o'o'o'o'o'o'o'o'oo'ooo'oooooooooooooooo 

- Wafers for A&J Microdrive 
TS2068 version 

- ARTWORX 

- Your list of TS2068 stuff you 
want to sell . . . 

MIKE STEVENS 
312 NEWTON AVE 
OAKLAND CA 94606-1320 



WANTED: ON 921025 

9-9-9-9-9-9-9-9-9-9-9-9-0.0-0-0-9-9-9-9-9-9-9-9-9-9-9-9-9-2-9- 

MEMOTECH ASSEMBLER MODULE FOR 
THE ZX81. 

FERDINAND GUNTHER 

1307 SHAW 

MOSES LAKE, WA 98837-3133 



FOR SALE: 



ON 921012 



0.0-0-0-0-0-9-9-2-9-9-9-9-9-9-9-9-9-9-0.0.0.0.9-9-2-2-2-9-9.9- 

TRS-80 MODEL 16.B W/15 MEG DISK 
SYSTEM FOR 8" DISK. 

(2) TRS-80 DWP 510 PRINTER 

(1) DAISY WHEEL PRINTR MODEL II 

(3) TRS-80 8 MEG DSK SYSTEM 

(2) TRS-80 12 MEG DISK SYSTEM 
(1) TRS-80 15 MEG DISK SYSTEM 

(4) DISK SYSTEMS 3 SLOTS, 2 DRV 
(4) TRS-80 MDL II MICROCOMPUTRS 
EVERYTHING WORKS - PRICE 
NEGOTIABLE - CALL PHIL OR JIM 
CLARK 8 AM -5 PM WEEK DAYS OR 
9 AM TO 12 NOON SATURDAYS 
708-366-1913 



FOR SALE: 



ON 920909 



9-9-9-0-0-9-9-9-0.0-9-2-9-2-0.0-0.0-0.0-0.0-2-2-9-9-2-2-2-0-2- 

I have acquired more ZX goodies 
to pass on to you all since my 
last ad: 

******************************* 

* Timex and Sinclair Hardware * 
******************************* 



(2 
(2 

(1 
(2 

(1 
(1 
(1 
(1 
(5 

(1 
(1 
(1 

(1 
(1 

(1 
(1 
(2 
(2 
(1 
(1 
(1 
(1 
(1 
(3 
(2 
(1 



TS2068 
Joysticks 

Spectrum Joystick Adapter 
Comodore 1520 Color Plotter 
Color Plotter Repl Pen Set 
Wico Trackball 
TS-2040 Printer 
TS2068/1520 Plotter Intfce 
TS-2050 Modems (untested, 3 
with cables, all uncased) 
OS-64 Cartridge 
TS2068 Winky Board 
Z-SIO ( TS2068 Serial 
Intfc) 

JLO TS2068 Expansion Board 

Z-Link ( TS2068 to Spectrum 

bus converter) 

JLO Printer Interface Card 

QL 

Crazybugs Cartridges 

Budgeter Cartridges 

States & Capitals Cartridge 

Pinball Cartridge 

Flight Simulator Cartridge 

Androids Cartridge 

ZX81 

TS-1016 (16K Rampack) 
TS1000 Winky Board 
Larken NVM for TS1000 



19 



««< continued next page »» 



* ★★★★★★★★★★★★★★★★★★★★★★★★★★•a-*** 

* TS2068 Software * 
******************************* 

Fighter Pilot 
MScript 

Flight Simulator 
Casboard TS2068 
Ramdizk 

Textwriter 2000 Plus 
Pro/File TS2068 
Hot-Z TS2068 
Mterm-T 
Loader V 

******************************* 

* Spectrum Software * 
******************************* 

Super Bowl 
Machine Code Tutor 
Higheay Encounter 
The Flying Formula 
Dlan 

Specterm-64 
ZXpert 
007 Spy 

Softaid (10 Programs) 

Cassette 50 (50 Programs) 
******************************* 

* TS-1000/ZX81 Software * 
******************************* 

Word Sine 
ZX-Term*80 

******************************* 

* QL Software & Manuals * 
******************************* 

QL Technical Guide 
MAC Paint (with files) 
CAD 

Runtime Editor 
Pascal 

Psion Package (WP, SS, DB, Graph) 

Qcode 

QLTerm 

QLink 

BEST OFFER 
Gary Lessenberry 
12 Alleghany Road 
Havelock, NC 28532 
919-444-3895 

FOR SALE: ON 920719 

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
1770 DISK DRIVE CONTROLLER 
I.C.s for $9.00 each postpaid 
to U.S. or Canadian addresses. 

Paul Holmgren 

52310 Wilton Wood Court 

Indianapolis IN 46254 

317-291-6002 

FOR SALE: ON 911015 

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 

QL Complete System $80 

Gold Card for the QL $500 

Call Frank Davis H317-473-8031 



FOR SALE 



ON 920522 



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
Epson LX-86 needs new head $25 
Call Tom Kowalski 708/289-7583 



WANTED: ON 920509 

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
TRACTOR AND /OR ROLL PAPER 
UNIT(S) FOR MANNESMANN TALLY 
MT160 PRINTER. ALSO, ANY 
INFORMATION ON THE RC ALLEN (BY 
LITTON WESTREX) PRINTER MODEL 
NO. 88802-112 

D. G. Smith, R.415 Stone St., 
Johnstown, PA 15906 

FOR SALE: ON 920309 

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
GETTING RID OF EXCESS 
EQUIPMENT, HARDWARE, SOFTWARE, 
BOOKS, ETC. FOR BOTH TS1000 AND 
TS2068. SEND FOR LIST. 

WILLIAM VOLK 

6015 CARTER AVE 

BALTIMORE MD 21214 

H301-254-8258 

FOR SALE: ON 920509 

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
LOCAL COMPUTER GROUP GETTING 
RID OF EXCESS EQUIPMENT, 
HARDWARE, SOFTWARE, BOOKS, ETC. 
T/S USER'S GROUP, P.O.BOX 614, 
Johnstown, PA 15907 

FOR SALE: ON 911025 

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
I have a Sinclair ZX81 with 
64K Memotech RAM, enhanced 
keyboard and 300 baud Byte-Back 
modem. I also have a TS2068 
with modem, printer, and 
Spectrum cartridge, along with 
a dozen old programs from 
Quicksilva and the like, for 
both machines. Both are in 
working order and excellent 
condition. Make an offer on the 
whole kit and kaboodle. 
Peter Paglia 
8802 Partridge Run 
Chapel Hill NC 27516 

FOR SALE: ON 910426 

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
COLOR COMPUTER 3 - DISK DRIVE 
CM- 8 COLOR MONITOR W/PLATFORM 
SMITH CORONA TP-1 PRINTER 
JOYSTICK AND 1 DOZ BLANK DISKS 
SOFTWARE INCLUDES DESK MATE 
HOME PUBLISHER $400 OR BEST 
312-337-3624 



20 



FOR SALE : 921010 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 

ATARI COMPUTER SYSTEM 
%%%%%%%%%% HARDWARE %%%%%%%%%%% 

ATARI 800XL 
ATARI 1050 Floppy disk drive 

9 inch HP Monitor 
Smith Corona TPII Daisy Wheel 
Printer 

ICD parallel Printer & serial 
interface (2 serial ports) 
Serial cable for modem 
Joystick 
%%%%% CARTRIDGE SOFTWARE %%%%% 
AtariWriter word processor 

(with manual) 
Assembler Editor programming 

language (with manual) 
Atari Basic programing language 

(with manual) 
AtariGraphics for use with 

light pen 
Space Shuttle flight simulator 

(with Manual) 
Jumbo Jet Pilot Flight Simltr 

(without manual) 
Missile Command computer game 

(with Manual) 
Math Mileage BASIC math skills 

game with manual 
Atari Lab science software 
(With manuals) 
Basic Module 
Temperature & Light Module 
%%%%%%%% DISK SOFTWARE %%%%%%%% 
The Pond (Thinking skills game) 

with manual 
221 Baker Street 
(Sherlock Holmes mystery game) 

with manual 
Master Type (Typing tutor game) 
with manual 

Tycoon 

(Commodity market simulation) 
with manual 

Millionaire 

(Stock market simulation) 
with manual 

Movie Maker 

(Animation construction) 
Music Construction set 
Chessmaster 2000 
Paperclip word processor 
850 express terminal program 
Great Blue-C prgrmming language 
%%%%%%%%%%%% BOOKS %%%%%%%%%%%% 
Mapping the Atari 
Microprocessor Manuals 

2- 2- 2- 2- 2- 2- 2- 2- 2- 2- 2- 2- TWITC/~" 2-2-2-2-2-9-9-2-2-2-2-2- 
'o'o'o'o'o'o'o'o'o'o'o'o l v ix OL , oooooooooooo 

A few discs with a disk case 

Q.O 2-2-2.2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-9-2-2-2-2-2-2-2-2- 
'o'o'5'o'o'o'o'o'o'o'oo'o'oooooooooooooooooo 

All above $150.00 

Call Doug Eaton 
H/708-668-2731 W/708-576-2116 

21 



And now, a word from 
our Vendors 

Please remember to support our 
Vendors. Isn't it time to 
acquire a disk drive system for 
your TS2068? Cost can't be the 
excuse because $125 will get 
you LarKen DOS and $50 more 
will get you dual drives from 
fests! Life just isn't long 
enough to wait for tape saves 
and loads! 

Running your computer without a 
modem is like having a sports 
car with no tires. You just sit 
there with all that horse power 
and can't go anywhere! Frank 
Davis says he has a lot of 
TS2050 modems and if he can't 
move them he will donate them 
away, what a loss to the T/S 
community that would be! 
Contact him and order yours at: 

MECHANICAL AFFINITY 
FRANK DAVIS 
513 EAST MAIN 
PERU IN 46970 
317-473-8031 

MECHANICAL AFFINITY 

PAUL HOLMGREN 
5231 WILTON WOOD CT 
INDIANAPOLIS IN 4 6254 

Please support our magazine, 
it's the only one left and is 
really very good. 

%%%%%%%%%%%%%%%%%%%%%%%%%% 
OUR ONLY MAGAZINE! 
PLEASE SUPPORT IT ! 

%%%%%%%%%%%%%%%%%%%%%%%%%% 

UPDATE! COMPUTER SYSTEMS 
PO BOX 1095 
PERU IN 46970 
317-473-8031 

AERCO 
BOX 18093 
AUSTIN TX 78760 
512-451-5874 
DOS & CPI'S 



LARKEN ELECTRONICS 

LARRY KENNY 
DOS & BBS SOFTWARE 

These fine products 
sold by both 
ED GREY & RMG ENTERPRISES 



ED GREY 

PO BOX #2186 

INGLEWOOD CA 90305 

213-759-7406 

RMG ENTERPRISES 

ROD GOWEN 

1419 1/2 7TH ST 

OREGON CITY OR 97045 

503-655-7484 

EMSOFT DIVISION 

PETER HALE 

PO BOX 8763 

BOSTON MA 02114-8763 

617-889-0830 

BYTE -BACK, INC. 
PO BOX 112 
LEESVILLE SC 29070 



MOUNTAINEER SOFTWARE 
BILL FERREBEE 
749 HILL ST #9 
PARKERSBURG WV 26104 
304-424-7272 

RUSSELL ELECTRONICS 

RD1 BOX 539 

CENTER HALL PA 16828 

ZUNK CUSTOM ELECTRONICS 
1419 FERRIS 
WAXAHACHIE TX 75165 

1710 PALMER DR 
LARAMIE WY 82070 

307-742-4530 
COLOR PRINTER SOFTWARE 
FOR TS2068 



SUNSET ELECTRONICS 

2254 TARAVAL ST 

SAN FRANCISCO CA 94116 

AERCO and OLIGER DOS is very 
popular also. LarKen DOS can be 
added to both for $65 so that 
you can enjoy two systems at 
once, the JLO/LarKen system is 
called super DOS, look for info 
in past UPDATE! articles by 
Bill Jones. 

Be sure to call or write our 
Vendors and ask for information 
on the x ir current stock of 
products . 

Vendors, T/SNUG will run your 
ads for free, just send us copy 
of your ad the way you want to 
see it here. Our members are 
paying to see what, you have to 
offer, we at T/SNUG feel that 
this will help you to stay 
around longer. Just send your 
copy to Don Lambert. We shall 
send you this newsletter for 
free for as long as you and we 
are 'still around'. 



ZX REPAIR 
DAN ELLIOTT 
RT 1 BOX 117' 
CABOOL MO 65689 

SHARP'S INC. 
BOX 326 

MECHANICSVILLE VA 23111 
804-730-9697 FAX>804-746-1978 



John Oliger passed this 
information to us about his new 
JLO SAFE V2.65 which includes a 
few new features . I like the 
new CAT /n feature. 

Prices : 

Source Listing w/comments. $7 . 95 

EPROM w/o exchange $15.00 

EPROM w/exchange $10.00 

JOHN OLIGER CO. 
11601 WHIDBEY DR 
CUMBERLAND IN 4 6229 
Affordable H/W Expansion 
DOS & CPI ' S 



j ! 



! ! ) 
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## #### ! ! 

### #### *#* 

### #### ### 

### #### ### 

#### #### *###* 

#### ! #### *###* 

#### ! #### ##### 

#### ## #### ##### 

## #### ### ##### #*##### 

## #### ### ###### ######## 



## #### ### ###### ## ######## 
####### ### ########## ######## 
###########*########## ######## 
############################### 

In Memory of 
PETER A KWITKOWSKI 



22