George Chambers

Articles (162)

TitleAuthor(s)PublicationDate
A 4-Line Program to Set RAMTOP
Short routine sets RAMTOP via values RAND pushes to the stack.
Sinc-LinkAugust/September 1986
A Data Acquisition System for the QL
Brief description of the system.
Sinc-LinkNovember/December 1988
A Header Program for the ZX81
Program to display the names of programs saved on a tape.
Sinc-LinkMarch/April 1985
A Header Program For ZX81 & TS-1000LISTing NewsletterJune - July 1991
A Header Program for ZX81 & TS1000
When I got my TS-2068 I thought one of the marvellous things about it was a Header program by which...
George ChambersLISTing NewsletterJune - July 1993
A LARKEN Disk LibrarySinc-LinkNovember/December 1988
A Novelty ProgramSinc-LinkMay/June 1989
A Novelty Program
This listing provides a novel title display, which can be incorporated into another program. It was supplied to the club...
George Chambers
David Solly
CATS NewsletterMay 1991
A Programming ExerciseSinc-LinkSeptember/October 1992
A query from one of our members: TS2068 Larkenized Oliger SystemSinc-LinkSeptember/October 1992
A Tape/Disk Save RoutineVISTA Newsletter
A Tip for QL Owners
One user found out the hard way that the QL chassis is grounded, resulting in blown video output.
Sinc-LinkJanuary/February 1988
A TS2068/Larken Program: File RecoverySinc-LinkSeptember/October 1988
A Z88 Users GroupSinc-LinkMay/June 1989
Aligning Decimal Points
Subroutines to align decimals and control the number of digits displayed after the decimal.
Sinc-Link
An Article Submitted by George Chambers
George describes an annual computer problem solving contest hosted by the University of Wisconsin-Parkside. Three challenges from the 1982 competition...
Sinc-Link
An Improved Label Maker for Larken SystemSinc-LinkSeptember/October 1988
An Improved Label Maker for Larken SystemSinclair Timex User Group NewsletterJanuary - February 1989
An Interbank Database for the TS2068
Larry Crawford has written a program which makes use of this feature to provide us with a very useful database...
Sinc-LinkJuly/August 1993
An Unusual Disk Drive ProblemSinc-LinkNovember/December 1988
Auto Fade for the TS-2068
The April 1986 issue of Your Sinclair had an article and a program listing for a feature which provides for...
Sinc-LinkJuly/August 1993
BUG-BYTE ZXTK Application Notes
Quick start notes for new users of ZXTK.
Sinc-Link
C.A.T.S. Computer Fest 1989Sinc-LinkMay/June 1989
Cassette Recorder Interface
Build a small interface unit to improve program loading.
Sinc-Link
Clean ScreenSinc-LinkMarch/April 1991
Colour Adjustments on the TS2068
RGB monitor details. Pot adjustments are given in careful detail.
Sinc-LinkJanuary/February 1985
Connecting an RGB Monitor
Describes how to connect an RGB monitor using a kit from E. Arthur Brown.
Sinc-LinkJanuary 1985
Disk DoctorZXir QLive Alive!Autumn 1996
Error Correction: Omnibus Disk L-02Sinc-LinkNovember/December 1991
File Header Reader Larken TS2068Sinc-LinkJuly/August 1990
From the Secretary’s Mailbag
Updates from various user groups.
Sinc-LinkJuly/August 1987
Index.B1 TS2068 LarkenSinc-LinkMay/June 1993
Index.B1: A Printer FixSinc-LinkJuly/August 1989
Index.B1: A Printer FixSinc-LinkNovember/December 1989
Input/Output
T/SNUG attempts to raise funds to purchase remainder of Rod Gowen’s inventory before he sends it to the landfill. Letters...
ZXir QLive Alive!Spring 1998
Input/Output
Letters from Hugh Scriven, Peter Lievert-Adelt, Gil Parrish, David Lassov, Frank Davis, Bob Swoger, Steve, Johnson, Jose Moreno, George Chambers,...
ZXir QLive Alive!Spring 1996
Input/Output
Letters from David Lassov, Jose Moreno, Gil Parrish, Seymour Miller, Don Lambert, Bob Swoger, Jon Shepard, Ken Harbit, Steve Johnson,...
ZXir QLive Alive!Spring 1997
Input/Output
More of the Rod Gowen liquidation saga. Letters from Jack Boatwright, Michael Henderlight, Harriet (Joan) Kealy, David Lassov, Fred Henn,...
ZXir QLive Alive!Summer 1998
Input/Output
Letters from Abed Kahale, George Chambers, Bill Harmer, Roy Wisti, Pete Paglia, Hugh Scriven, Bill Allen, Bob Madaris. Recover from...
ZXir QLive Alive!Winter 1991
Insomniac Electronics UpdateSinc-LinkJuly/August 1989
Interbank Database, Part 2: TS-2068 and the Larken RAMdiskSinc-LinkMarch/April 1993
Interbank Database: TS-2068 and the Larken RAMdiskSinc-LinkJanuary/February 1993
International Post Office Money OrdersSinc-LinkMarch/April 1989
Items Gleamed from Other Club Newsletters
The Plotter reports that most repairs sent to Dan Elliot are completed and returned quickly. Only those requiring SCLDs take...
Sinc-LinkJanuary/February 1988
Larken “Maxcomm” BBS SoftwareSinc-LinkMarch/April 1989
Larken and the Large PrinterSinc-LinkJanuary/February 1989
LARKEN Cartridge Disk Operating System
Observations and tips on using the LARKEN Cartridge DOS.
Sinc-LinkJuly/August 1987
Larken Directory (Track 0) Repair
The track directory for the Larken disk system is located on track 0. This directory stores the data that is...
Update MagazineApril 1989
Larken Disk Controller for the TS 2068
Brief overview/review of the controller board.
Sinc-LinkNovember/December 1985
Larken Disk Copier Utility
Program to copy Larken disks using only one drive. Copies limited to programs up to 14 blocks.
Sinc-LinkAugust/September 1986
Larken Disk Copy Utility
Program to copy a disk on a Larken system with either one or two disk drives.
Sinc-LinkMay/June 1988
Larken Disk Doctor
This utility will be found useful in the inspection, analysis, and correction of errors on disks used on the Larken...
Update MagazineJuly 1988
Larken Disk Drive InformationSinc-LinkMay/June 1989
Larken Disk Drive Operation
How to make a boot tape for a Larken disk system.
Sinc-LinkJanuary/February 1986
Larken Disk LibrarySinc-LinkNovember/December 1990
Larken Disk LibrarySinc-LinkJanuary/February 1989
Larken Disk LibrarySinc-LinkMay/June 1989
Larken Disk LibrarySinc-LinkMarch/April 1989
Larken Disk Library NotesSinc-LinkJuly/August 1989
LarKen DisketteZXir QLive Alive!Summer 2001
LarKen DSK 400 Disk Operating System
Review of the disk interface system.
Update MagazineJanuary 1988
Larken DSK 400 Review
Review of the third generation disk interface system.
Sinc-LinkNovember/December
Larken DSK400 Disk Operating SystemSLUG NewsletterJanuary 1988
LARKEN EPROM DOS Version 3Sinc-LinkSeptember/October 1988
Larken Index.B1 A Printer FixSinc-LinkJuly/August 1989
Larken LinesThe PlotterJanuary 1988
Larken Load/Save Routines
Machine code utility for loading and saving tracks on the original Larken system.
Sinc-LinkJanuary/February 1988
Larken News
Larry branching out to CAD-CAM drilling/routing machines.
Sinc-LinkNovember/December 1989
Larken NMI-F Autorestart MenuSinc-LinkMay/June 1990
Larken NotesSinc-LinkMarch/April 1989
Larken RamdiskSinc-LinkSeptember/October 1988
LARKEN RAMdisk (Bug Alert)
Some LARKEN RAMdisk boards may have a diode reversed.
Sinc-LinkMay/June 1989
Larken RAMdisk for the TS 2068
I have found that for persons with two drives, the RAMdisk maximizes use of the second drive. And it reduces...
Update MagazineOctober 1988
Larken RAMdisk for the TS 2068Sinc-LinkJuly/August 1988
Larken Repair Program
Suggestions for improving a disk repair program printed in an earlier issue.
Sinc-LinkMay/June 1988
Larken TipSinc-LinkMay/June 1989
Larken Tips
Three tips for dealing with quirks in the Larken disk system.
Sinc-LinkNovember/December 1986
Larken User Notes
Tips for using the Larken disk system.
Sinc-LinkMay/June 1986
Larken Utilities
Lists and describes utilities members of the Toronto Timex Sinclair User’s Club wrote for the Larken disk system.
Sinc-LinkNovember/December 1986
Larken: A Tip on Disk DrivesSinc-LinkMarch/April 1989
Larken: Cracking Spectrum ProgramsSinc-LinkMay/June 1989
Letter from the President
Comments on progress and changes in the year since the club formed. At last meeting, 15 of 30 members present...
Sinc-LinkNovember 1984
Letter from the President
Concern about balance among computer owners.
Sinc-LinkJanuary 1985
Letter to Les CottrellSinc-LinkJune 24, 1989
Letter to Out-of-town Members
George Chambers describes newsletter issues, updates on Larken disk drive systems. Update on club library. Query for pottery enthusiasts to...
Sinc-LinkSeptember/October 1986
Letter: Toronto Timex-Sinclair Users Club
Short letter about the club and contact information.
ZX ComputingJune/July 1985
Letters from Steve Gunhouse
Joysticks, disk drive definitions, conserving memory, plotting functions.
Sinc-LinkMarch/April 1989
Line Delete for the SpectrumSinc-LinkMarch/April 1991
Magazine ClippingsSinc-LinkJanuary/February 1989
Merging BASIC Programs
Method for typing in a second program without losing the first.
Sinc-Link
Mismatch … A terrific read
Mention of a book about hacking/phreaking.
Sinc-LinkMarch/April 1989
Modems Modems ModemsSinc-LinkMay/June 1989
Modifying the 2068 Larken Disk TitleSinc-LinkSeptember/October 1989
MTERM II Mods for Larken DD System
Pokes and modifications to make MTERM II work with Larken disk systems.
Sinc-LinkMarch/April 1988
MTERM II: Modification for the LARKEN DD System
Modifications to make MTERM work well with the Larken system.
Update MagazineJanuary 1988
Multiplication
Short program to implement Russian Peasant Multiplication.
Sinc-LinkSeptember/October 1990
Multiplication Accuracy With The ZX 81
Program to multiply two integers of any practical length with absolute accuracy.
Sinc-LinkMay/June 1983
Multiplication Accuracy with the ZX81
Program to multiply two integers with absolute accuracy.
Sinc-LinkSeptember/October 1990
New Locations for M/C Routines in a 64K RAMpack
Small hardware modification to allow machine code programs to run in the 32-48K RAM space.
Sinc-LinkMay/June 1988
Newsletter CommentsSinc-LinkJuly/August 1989
Notes from My CorrespondenceSinc-LinkMay/June 1992
Of Interest to QL Owners: A new regulartor for your QLSinc-LinkMarch/April 1989
Pascal Disk Handler for the LARKEN Disk Operating SystemSinc-LinkSeptember/October 1988
Penetrator – A TS2068 game
Modifying for Larken.
Sinc-LinkMarch/April 1990
Power Supply for the LARKEN
Brief discussion of building a linear power supply for the Larken disk drive.
Sinc-LinkMarch/April 1987
President’s Message
Reports seven Larken owners, other comments about disk systems.
Sinc-LinkMarch/April 1986
President’s Message
Club has grown to 130 members, including 55 outside of Toronto.
Sinc-LinkMay/June 1986
President’s Message
New bulletin board system, newsletters from other clubs.
Sinc-LinkAugust/September 1986
President’s Message
Newsletters, books, tapes and articles compiled from a variety of sources are in the club library.
Sinc-LinkSeptember/October 1985
Printer InkSinc-LinkSeptember/October 1990
Printer Interfaces and Driver SoftwareSinc-LinkNovember/December 1991
Printer Interfaces and Driver SoftwareSinc-LinkSeptember/October 1991
Printer Interfaces and Driver Software, Part 3Sinc-LinkJanuary/February 1992
Printer Interfaces and Driver Software, Part 4: HackselSinc-LinkMarch/April 1992
Program Credits
Suggestions for properly documenting a program.
Sinc-LinkNovember 1984
Programming the TS2068: Opening Larken FilesSinc-LinkSeptember/October 1989
Programming tips… LARKEN SystemSinc-LinkNovember/December 1988
Psi Chess and the LarkenSinc-LinkSeptember/October 1990
RAMDisk to Disk Backup: A Larken 2068 UtilitySinc-LinkJuly/August 1989
Re-inking Printer Ribbons
Brief overview of extending the life of printer ribbons by re-inking.
Sinc-LinkMay/June 1988
Repair – A Larken Utility
Corrections to a program used to reconstruct a Larken disk directory.
Sinc-LinkMarch/April 1988
REPAIR: A Larken Disk Repair Utility
Tool to reconstruct programs on disks where the directory has become corrupted.
Sinc-LinkJanuary/February 1988
RGB Monitors and the TS2068
How to determine if the TTL RGB monitor will work with the 2068.
Sinc-LinkMay/June 1990
Saving a Headerless File Using a Machine Code Routine
Short code and technique for saving headerless files.
Sinc-LinkMarch/April 1987
Saving SCREEN$ of LARKEN
Short routine to save a SCREEN$ file while avoiding the Larken DOS cursor.
Sinc-LinkMarch/April 1987
Scrabble and the LARKEN System
Patch to make the program work with the Larken disk system.
Sinc-LinkNovember/December 1988
SNODGITS and the Larken SystemSinc-LinkMarch/April 1989
System 15000 on the Larken Disk SystemSinc-LinkMarch/April 1989
TASWORD and the Larken Printer Driver
Patch for Tasword.
Sinc-LinkNovember/December 1988
Tech Draw and the LarkenSinc-LinkMay/June 1990
Technician Ted and the LarkenSinc-LinkMarch/April 1989
The Latest from S.N.U.G.Sinc-LinkJuly/August 1989
Time Designs MagazineSinc-LinkMay/June 1989
Timex Repairs
Letter from Dan Elliott about repair services. Dan contacted Timex Portugal about sourcing replacement SCLDs.
Sinc-LinkNovember/December
Toronto Timex Sinclair Users Group: A History
In October 1982 a short advert appeared in the classified section of the Toronto Star, asking persons who might be...
Sinc-LinkJanuary/February 1989
Toronto Timex-Sinclair Users Club Information SheetUpdate MagazineOctober 1990
Transferring MSDOS files to the TS2068
Recently I was given an MSDOS disk by Bill Harmer, of Ottawa, to see what I could do with it....
Sinc-LinkMay/June 1990
Transferring MSDOS Files to the TS2068
Techniques and program for loading files from an MS DOS disk using a Larken disk system.
ZXir QLive Alive!Winter 1991
Trip to EnglandSinc-LinkJuly/August 1989
Trivial Pursuit: Converting to Larken Disk OperationSinc-LinkMarch/April 1990
TS 2068 – Copying a Screen$ to the TS-2040 Printer Using the Larken User-defined NMI/F-key OptionSinc-LinkMarch/April 1993
TS 2068 Breaking out of a Closed Input Loop
Breaking out of an INPUT LINE statement. Use CAPS SHIFT and 6.
Sinc-LinkAugust/September 1986
TS 2068 Notice
Eric Michaud developed an input/output cartridge for the TS 2068 with 8 inputs and 8 outputs, all TTL. Inquiring about...
Sinc-LinkMarch/April 1986
TS 2068 Programming TipSinc-LinkJanuary/February 1993
TS 2068 Programming TipSinc-LinkMay/June 1993
TS 2068 Sound Routines
Gunshots, Whistling Bomb and Explosion.
Sinc-LinkSeptember/October 1986
TS Communique: Your Hardware Problems Explored
Mindware MW-100 printer with TS2068; composite/RGB monitor blanking when used with 1000; interfacing to TTL monitors; Hacksel interface with Radio...
Time Designs MagazineSeptember/October 1988
TS2068 Timachine – A Fix
The purpose of this write-up is to explain what was done and why to enable large printer printing of the...
Sinc-LinkJanuary/February 1992
TS2068-Larken NMI-F Key: Another ApplicationSinc-LinkJanuary/February 1992
TS2068-Larken TidbitSinc-LinkJanuary/February 1994
Twelve Coins
We received a nice reply to our puzzle about 12 coins of equal denomination but one was a counterfeit. With...
George ChambersThe PlotterApril 1994
Use of the IN function
Sample ETCH-A-SKETCH to demo the IN function.
Sinc-LinkMarch/April 1985
Use of the IN Function: Dual Simultaneous Keypresses on TS2068
Explains detecting two simultaneous keypresses on the TS2068 using the IN function with specific port addresses. Includes a port address...
George ChambersTimelinezJune 1985
Vera Cruz on the Larken Disk System
Port the program to a Larken system.
Sinc-LinkSeptember/October 1988
Weather ForcasterZX-AppealOctober 1988
Wordmaster TipSinc-LinkMarch/April 1991
WordsquareSinc-LinkMarch/April 1989
Z80 – The Spectrum Emulator for MSDOS
A review of the Z80 shareware Spectrum emulator by Brian Gaff (B.G. Services, UK) for MS-DOS. Covers building a tape...
George ChambersSinc-LinkJuly/August 1994
ZX Microfayre
Report on the ZX Micro Fair.
Sinc-LinkJuly/August 1987
ZX-81 Computer Joystick
Describes how to connect a joystick, includes demonstration program.
Sinc-Link
ZX81 Tape Library
Two programs from the tape library. One program recovers part of a bad tape. The other saves a self-running program.
Sinc-LinkSeptember/October 1990
ZX81: Print UsingSinc-LinkJuly/August 1991

Downloadable Files (7)

TitleTypeCompanyDownload
ElizaProgramDownload
Metric ConversionProgram
MultiplyProgramDownload
Multiply 1Program
Multiply 2Program
New York by NightProgram
Spell That WordProgram

Documents (2)

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