Timex Sinclair Online User Group – Timex/Sinclair Computers

Founded: 2020

This informal group has twice a month meetings online (via Zoom). Like in-person user group meetings, we have guests, talk about our projects and a wide array of computing topics.

This group has its origins in the Yahoo TS 2068 Group, which migrated to groups.io when Yahoo Groups shut down.

Join Our Email List

Sign up for our email list. We’re usually on topic and there are lots of other smart and fun folks. Even though it’s named for the 2068, we cover all the Timex/Sinclair computers and even the QL and Z88.

Join Our Zoom Meetings

We meet on the 1st Monday and 3rd Sunday of the month (unless it’s a holiday).

Meeting Recordings

August 05, 2024

We discussed the project to re-create the Timex 1510 cartridge player. Carl talked about his effort to recreate the Timex/Sinclair 2000 and Ryan showed us photos he took at two computer museums in England.

July 21, 2024

Johan "Dr Beep" Koelman talked to us about how he got into Sinclair computers and what led him to write a bunch of games for the 1K Sinclair ZX81.

July 01, 2024

We discussed the SPONZY (Spectrum ROM on ZX81) project, the TS-Pico new software and other projects.

June 23, 2024

We talked about reasons for enjoying the ZX81/TS1000, Mowgli Assor joined and told us of his experiences.

June 03, 2024

Jack Boatwright joined us and recounted his experiences.

May 19, 2024

Jim March joined us and we updated him on progress with the hardware, software and other items he donated for preservation.

May 06, 2024

We discussed real uses of the TS 2068, including small business accounting in Canada and Argentina, the 1510 cartridge system and other topics.

April 21, 2024

In this meeting, we talked about the TS Pico project, new members, records with ZX programs and more.

April 01, 2024

Eduardo Fuentes presented his enhancements to a CP/M board for the 2068.

March 17, 2024

Our discussion included emulator usage, Baud Day and the TS-1510

March 04, 2024

We discussed the implementation and possible expansions of the ZX Spectrum computer.

February 18, 2024

Joe Vandezande shared some software for the ZX81 he'd recently archived, we welcomed new participants Jeremiah Stoddard and Zee Mehciz, and more.

February 05, 2024

Jeff Burrell discussed the potential options for a "next" TS2068 using either software or hardware.

January 21, 2024

We discussed using modems with Timex computers, ongoing software conversion projects, ZXZine and more.

January 01, 2024

Adam and Ryan considered creating a podcast focused on unusual stories of how people used their Timex and Sinclair computers.

December 17, 2023

João Diogo Ramos, of the Load ZX Spectrum museum, discussed the status of two pending projects, including the SCLD documentation and the launch of the Timex Computer World website.

December 04, 2023

We talked about creating a bus expansion unit (BEU), now that we have information from Timex about its specifications, as well as an updated TS 2068.

November 19, 2023

Ricardo Calcagno, Gustavo Pane, Jeff Burrell and David Anderson demo and discuss the TS Pico interface for the Timex/Sinclair 2068. Tim Swenson talks about Bill Miller's collection.

November 06, 2023

Bill Miller's collection rescued, Louis Florit's TS 2068 website, Johnny Red shows Portuguese Timex computers.

October 15, 2023

Tim showed off a Sinclair Spectrum +2 and we had a fun discussion about what we might do as a community to complete the TS 2060 Bus Expansion Unit and build a "next" 2068.

October 02, 2023

With special guest Jeff Street, Zebra Systems programmer. Jeff wrote a number of programs and drivers for Zebra Systems, including OS-64.

September 17, 2023

We talked about: - a 3D printed cartridge case and board to fit in it - potential solution for lower (video) RAM in the 2068 - what a "next" TS 2068 might look like

September 04, 2023

We were joined by Steve North, a comedian and comic coach who, in the early 1980s, wrote four games for the Timex/Sinclair 1000.

August 20, 2023

We chatted about the TS Pico, a device developed by Ricardo Colagno, Gustavo Pane, Tim H and Jeff Burrell. It was inspired by work Johan "Dr Beep" Koelman did for the ZX Spectrum.

August 07, 2023

We chatted about our projects, including Ingo Schmied's work on making an enlarged ZX81/TS1000 with a full size keyboard, Joe Vandezande reverse engineering a floppy disk interface for the TS 1000 and more.

July 16, 2023

David talked a bit about the connection between the Koala Pad and Sinclair computers. David also gave an update on archiving tapes, documents, newsletters and more.

July 03, 2023

Clark Calkins joined us for this meeting. Clark had a long career in computer programming and worked for a brief bit, part-time, for A & J Microdrive. He also wrote a real-time, embedded operating system for the Timex/Sinclair 1000 based on CP/M.

June 18, 2023

Richard Booth, author of Applied Sinclair: Subroutines for the Mathematically-Minded, joined us.

June 05, 2023

David gave an update on archiving tapes, documents, newsletters and more. Jeff Burrell showed the latest developments and demonstrated functions of his amazing video board.

May 21, 2023

Adam gave an update on the activities of the Albuquerque Timex Sinclair User's Group, made up of Ryan Gray, Carl Miles and Adam.

May 01, 2023

We talked about updates to the website, recovered programs and what the members of the group have been working on.

April 16, 2023

Chuck Durang, author of the Timex/Sinclair 1000, 1500 and 2068 user manuals, join us to talk about his experiences.

April 03, 2023

Bob Fischer, a former middle and high school band instructor, joined us to talk about a grade book program for the TS1000 he wrote and sold.

March 19, 2023

Claudius Fatla joined to tell us about developing a clone of the Timex Computer 2048, a computer produced by Timex Portugal.

March 06, 2023

With special guest George Grimm, former software manager for Timex Computer Corporation.

February 19, 2023

Danny Ross, former Vice President and COO of Timex Computer Corporation, joins us for this special meeting.

February 06, 2023

In this meeting we learned that former Supreme Court Justice David Souter was a Timex/Sinclair 2068 user.

January 15, 2023

Tim Swenson gave a demonstration of Sinclair QL emulators, including showing off some microdrive cartridges.

January 02, 2023

Bob Swoger memorialized; members demonstrated their programs and caught us up on projects.

December 18, 2022

Discussion about Bob Swoger, a long time supporter of the Timex Sinclair community.

December 05, 2022

Adam Trionfo dug into the FDD 3/3000 disk images, examining a home-made version of Q*Bert.

November 20, 2022

Mark Kloosterman showed us some of his large Sinclair and Timex/Sinclair collection.

November 07, 2022

Members caught us up on their projects. Adam, Carl and Ryan met in person.

October 16, 2022

Special guest Jim March chats about writing The Timex/Sinclair User's Encyclopedia.

October 03, 2022

Newcomer Paul Anderson gave us an intro to how he came into the Timex/Sinclair scene in the 1980s and what he's doing now.

September 25, 2022

We watched David as he tried to operate the ZESarUX emulator in real time and at full speed, encountering all sorts of problems trying to run a simple demonstration.

September 05, 2022

In this week's meeting of our group, we were joined by Joe Vandezande, a Timex enthusiast. Joe told us about his maxed-out Timex/Sinclair 1000 that he attempted to mount in a Hazeltine computer terminal. Andy Hradesky, a long-term TS enthusiast, joined us and regaled us with tales of his experiences.

August 21, 2022

In this week's meeting of our group, we were joined by Ryan Gray, a Timex enthusiast. Ryan has resurrected a user-defined graphics editor he wrote on the TS 2068 in the 1980s and is working on improving it. Ryan is using a Raspberry Pi 400 with the ZEsarUX and FUSE emulators for his development.

August 08, 2022

In this week's meeting of our group, we were joined by Tim Ward, a Timex enthusiast. Tim was instrumental in forming the Timex/Sinclair Users Group Of Fort Worth and later, with Tony Willing, formed a tape library of TS1000 and TS2068 programs.

July 24, 2022

Jaroslav Švelch, PhD, is head of the Prague Game Production Studies group at Charles University in Prague, Czech Republic. He talked to us about his book, GAMING THE IRON CURTAIN: How Teenagers and Amateurs in Communist Czechoslovakia Claimed the Medium of Computer Games.

July 11, 2022

In this week's meeting, we talked about the huge amount of documentation Jack Boatwright preserved.

June 26, 2022

In this week's meeting of our group, we were joined by Lon Hildreth, a former Timex programmer. Lon worked at Burroughs, with Lou Galie and Scott McCourt, prior to joining Lou and Scott at Timex.

June 06, 2022

This meeting features Thomas B. Woods, Wes Brzozowski, Jeff Mazur, Tim Horner, Ryan Gray, Jeff Burrell and Stewart Newfeld.

May 15, 2022

In this week's meeting of our group, we were joined by Tim Horner (from New Zealand!), Ingo Schmied, Ryan Gray, Jeff Burrell and Stewart Newfeld.

May 02, 2022

We were joined by Dan Roy, who designed a TMS9918A-based video expansion for the Sinclair ZX81/TS1000.

April 24, 2022

Jeff Mazur, author of the Timex Sinclair 2068 Intermediate/Advanced Guide talked about his book, NTSC ZX Spectrum he was sent to work from, and more.

April 04, 2022

This meeting features Tim Swenson, a long-time Sinclair user. Tim started out with a Sinclair ZX-81, briefly transitioned to the Timex/Sinclair 2068 and used the Sinclair QL for many years.

March 20, 2022

Will Collum, former Timex Computer Corporation programmer, joins us to discuss his work at Timex (he wrote the cartridge detection code in the TS 1500), Z80 coding, and his career before and after Timex.

March 07, 2022

Greg Bennett talks about his implementation of Wordle on the ZX81, Jeff Burrell talks about his work on using UnoDOS and divMMC hardware to potentially lead to a 2068-specific divMMC.

February 20, 2022

Load ZX Museum: https://loadzx.com/en Sell My Retro: https://loadzx.com/books/ Planeta Sinclair: https://planetasinclair.blogspot.com/

February 07, 2022

Keith Watson's use of a Timex/Sinclair 2068 to produce compressor performance charts.

January 16, 2022

Sunday afternoon meeting so European Timex and Sinclair and American enthusiasts can meet.

January 03, 2022

We talked about creating multi-ROM cartridges, the possibility of an auto-boot Spectrum ROM cartridge and more.

December 19, 2021

Our first Sunday meeting with folks from Europe.

December 06, 2021

Special guest is Gary Grimes, the industrial designer responsible for the Timex/Sinclair 2068 case design.

November 02, 2021

Online meeting of Timex/Sinclair computer enthusiasts. Includes presentations by Stewart Newfeld (of Zebra Systems) and Jeff Burrell.