David Anderson is the person who made this website, with a lot of help from others. The Timex/Sinclair 1000 was the first computer he owned.
He’s interested in the rich, vibrant community around the Sinclair and Timex/Sinclair computers, from the ZX-80 and MicroAce, to the early 80s when we had two magazines (and articles in regular computer publications), to the cottage industries that sprung up during the best times and kept going long after Timex left the market.
| Title | Author(s) | Publication | Date |
|---|---|---|---|
| Book Review: ZX Spectrum Assembly Let’s Make a Game? I have long found it challenging to learn Z80 assembly language. I read Z80 Assembly Language Programming by Lance Leventhal... | David Anderson | ZXzine | January 2025 |
| How to Back Your Way Into Learning Z80 Assembly A bunch of years ago, in the process of building timexsinclair.com, I added some disassemblies of the Timex/Sinclair 2068 ROMs... | David Anderson | ZXzine | January 2025 |
| The TS Pico: A Modern Storage System for the Timex/Sinclair 2068 The TS Pico story starts in 2021, when Ricardo Calcagno emailed me to ask if anyone had designed a modern... | David Anderson | ZXzine | January 2025 |
| Title | Author(s) | Date |
|---|---|---|
| Everything Timex/Sinclair The guide to all hardware, software and accessories for the Timex/Sinclair computers. | David Anderson | 2021 |
| Timex/Sinclair 2068 ROM Disassembly Complete, annotated disassembly of the Timex Sinclair 2068 operating system, including the HOME and Extended (EXROM) ROMs, memory map, system... | David Anderson | 2023 |
| Title | Date | Watch |
|---|---|---|
| TIMEX Connection: TS1500, Pt. 1 João Diogo Ramos (LOAD ZX Spectrum museum founder) and David Anderson (book author and founder of the timexsinclair.com website) bring... | May 1, 2023 | Watch ↗ |
| TIMEX Connection: TS1500, Pt. 2 In this second episode of "Timex Connection," João Diogo Ramos (LOAD ZX Spectrum museum founder) and David Anderson (book author... | June 17, 2023 | Watch ↗ |
| TIMEX Connection: TS1500, Pt. 3 This episode examines Timex 1500 hardware and February 1983 technical documentation, revealing intensive development work three months before launch, including... | July 21, 2023 | Watch ↗ |
| TIMEX Connection: TS1500, Pt. 4 This episode covers chronological TS-1500 development boards, March 1983 project management charts, and competing US/Portuguese designs racing toward May launch. | August 7, 2023 | Watch ↗ |
| TIMEX Connection: TS1500, Pt. 5 This episode examines April 1983 documents revealing Portuguese prototypes failed FCC certification just weeks before May launch, plus marketing strategy... | August 7, 2023 | Watch ↗ |
| TIMEX Connection: TS1500, Pt. 6 This episode examines April-May 1983 final launch push, revealing US analysis comparing Portuguese versus Middlebury designs, with Portugal's version having... | October 27, 2023 | Watch ↗ |
| TIMEX Connection: TS1500, Pt. 7 This last episode completes a comprehensive documentation analysis, examining October 1983-July 1985 documents revealing continued cost reduction efforts and TS-1500... | November 3, 2023 | Watch ↗ |
| Timex Sinclair Online User Group December 4, 2023 We talked about creating a bus expansion unit (BEU), now that we have information from Timex about its specifications, as... | December 4, 2023 | |
| Timex Sinclair Online User Group May 18, 2025 We welcomed a new member, talked about AI-written theme songs, a recent reunion of Timex Portugal employees, discussed the 2068... | May 18, 2025 | |
| Timex Sinclair Online User Group May 21 2023 Adam gave an update on the activities of the Albuquerque Timex Sinclair User's Group, made up of Ryan Gray, Carl... | May 21, 2023 | |
| Timex Sinclair Online User Group Meeting April 13, 2025 Jeff gave us an overview of the TS 2060 hardware design and features. We discussed the design of the enclosure... | April 13, 2025 | |
| Timex Sinclair Online User Group Meeting April 3, 2023 Bob Fischer, a former middle and high school band instructor, joined us to talk about a grade book program for... | April 3, 2023 | Watch ↗ |
| Timex Sinclair Online User Group Meeting August 18, 2024 We talked about how to preserve the Timex Sinclair memory and machines in a physical way accessible to many. Is... | August 18, 2024 | |
| Timex Sinclair Online User Group Meeting December 1, 2025 In this meeting, we reviewed the history of the Timex Computer Corporation and development of the Timex/Sinclair 1000, Timex/Sinclair 1500... | December 1, 2025 | |
| Timex Sinclair Online User Group meeting December 17, 2023 João Diogo Ramos, of the Load ZX Spectrum museum, discussed the status of two pending projects, including the SCLD documentation... | December 17, 2023 | |
| Timex Sinclair Online User Group meeting December 5, 2022 Adam Trionfo dug into the FDD 3/3000 disk images, examining a home-made version of Q*Bert. | December 5, 2022 | |
| Timex Sinclair Online User Group Meeting February 16, 2025 Carl Miles discusses plans for a comprehensive expansion board for the ZX81, tentatively called the "1560". Joao Diogo Ramos told... | February 16, 2025 | |
| Timex Sinclair Online User Group Meeting February 19, 2023 Danny Ross, former Vice President and COO of Timex Computer Corporation, joins us for this special meeting. | February 19, 2023 | Watch ↗ |
| Timex Sinclair Online User Group Meeting February 2, 2026 We discussed custom keycaps for a full-size keyboard for the ZX81/TS1000, Carl and Ingo's work on getting Carl's new full-featured... | February 2, 2026 | |
| Timex Sinclair Online User Group Meeting February 22, 2026 On this 42nd anniversary of Timex's departure from the computer industry, we discussed the announcement, the context and the impact... | February 22, 2026 | |
| Timex Sinclair Online User Group Meeting January 15, 2023 Tim Swenson gave a demonstration of Sinclair QL emulators, including showing off some microdrive cartridges. | January 15, 2023 | Watch ↗ |
| Timex Sinclair Online User Group Meeting January 18, 2026 Chris Boisvert, one of the original creators of Byte Power 1st Class Magazine, joined us. He explained how he and... | January 18, 2026 | |
| Timex Sinclair Online User Group Meeting January 2, 2023 Bob Swoger memorialized; members demonstrated their programs and caught us up on projects. | January 2, 2023 | Watch ↗ |
| Timex Sinclair Online User Group Meeting June 2, 2025 We discussed the original ZX81 manual in this meeting's "Book Nook" and talked about the coordination for VCF Midwest. | June 2, 2025 | |
| Timex Sinclair Online User Group Meeting June 3, 2024 Jack Boatwright joined us and recounted his experiences. | June 3, 2024 | |
| Timex Sinclair Online User Group Meeting March 19, 2023 Claudius Fatla joined to tell us about developing a clone of the Timex Computer 2048, a computer produced by Timex... | March 19, 2023 | Watch ↗ |
| Timex Sinclair Online User Group Meeting March 31, 2025 Tim Swenson talked his ongoing work with ZX BASIC (also known as Boriel Basic). He mentioned that the last significant... | March 31, 2025 | |
| Timex Sinclair Online User Group Meeting May 5, 2025 Our meeting included introductions from four new-to-the-Zoom meeting members, as well as updates on Greg Bennett's Wordle program and the... | May 5, 2025 | |
| Timex Sinclair Online User Group Meeting May 6, 2024 We discussed real uses of the TS 2068, including small business accounting in Canada and Argentina, the 1510 cartridge system... | May 6, 2024 | |
| Timex Sinclair Online User Group Meeting November 16, 2025 We discussed shared community history and technical knowledge. We talked about the evolution of user groups from 1980s, who often... | November 16, 2025 | |
| Timex Sinclair Online User Group Meeting November 3, 2025 We showed off a seasonally appropriate turkey program and shared updates on projects. | November 3, 2025 | |
| Timex Sinclair Online User Group Meeting November 4, 2024 Hugo Pinto shared his experience with the Load ZX Spectrum Museum's recent recovery of the Tenet educational network system. | November 4, 2024 | |
| Timex Sinclair Online User Group Meeting October 7, 2024 We talked with David Solly about his new Spectrum Next. Paul DeMelto talked about his use of vintage computers and... | October 7, 2024 | |
| Timex Sinclair Online User Group Meeting September 15, 2024 Ingo Schmied shows his KiloZed, a pumped up and moderately larger Sinclair ZX81, and Joe Vandezande talked about his process... | September 15, 2024 | |
| Timex Sinclair Online User Group Meeting, March 17, 2024 Our discussion included emulator usage, Baud Day and the TS-1510 | March 17, 2024 | |
| Timex Sinclair Online Users Group October 7, 2024 David and Joe discussed recovering old tapes. Joe described using a homemade dehydrator for 3D printer filaments to salvage tapes.... | October 7, 2024 | |
| Timex Sinclair User Group Meeting June 23, 2024 We talked about reasons for enjoying the ZX81/TS1000, Mowgli Assor joined and told us of his experiences. | June 23, 2024 | |
| Timex Sinclair User Group Meeting March 3, 2025 We discussed potential upgrades to the TS-Pico and PicoVideo, audio mods for the 2068, mods to improve the ZX81/TS1000, and... | March 3, 2025 | |
| Timex Sinclair User Group Meeting, April 1, 2024 Eduardo Fuentes presented his enhancements to a CP/M board for the 2068. | April 1, 2024 | |
| Timex Sinclair User Group November 19, 2023 Ricardo Calcagno, Gustavo Pane, Jeff Burrell and David Anderson demo and discuss the TS Pico interface for the Timex/Sinclair 2068.... | November 19, 2023 | |
| Timex/Sinclair Online User Group July 20, 2025 ZX Spectrum Next Kickstarter launched July 19th. Group discussed hardware repairs, power supply safety, Tim's printer emulator project, international participation,... | July 20, 2025 | |
| Timex/Sinclair Online User Group Meeting April 21, 2024 In this meeting, we talked about the TS Pico project, new members, records with ZX programs and more. | April 21, 2024 | |
| Timex/Sinclair Online User Group meeting April 24, 2022 Jeff Mazur, author of the Timex Sinclair 2068 Intermediate/Advanced Guide talked about his book, NTSC ZX Spectrum he was sent... | April 24, 2022 | |
| Timex/Sinclair Online User Group Meeting April 26, 2026 VCF East: Heathkit H11, an Apple I (real or repro?), a swatting evacuation, and the show's first-ever Timex table. Plus... | April 26, 2026 | |
| Timex/Sinclair Online User Group Meeting April 6, 2026 Ingo's keycap Kickstarter funded 7x in five days. Dr. Beep releases 150 ZX81 games on itch.io. | April 6, 2026 | |
| Timex/Sinclair Online User Group Meeting August 10, 2025 From Jim Crow to NASA, R. Asa Gordon's journey from punch-card computing to predicting Apollo missions' radio blackouts reveals how... | August 10, 2025 | |
| Timex/Sinclair Online User Group Meeting August 4, 2025 Discover the ZX81 programming journey of Steven Reid, from his first game 'Water Bug' to the Ultima-inspired 'Gem Quest', pushing... | August 4, 2025 | |
| Timex/Sinclair Online User Group meeting August 8, 2022 In this week's meeting of our group, we were joined by Tim Ward, a Timex enthusiast. Tim was instrumental in... | August 8, 2022 | |
| Timex/Sinclair Online User Group Meeting December 2, 2024 Tim Swenson described differences between Boreal ZX Basic and Sinclair Basic. Carl demonstrated improvements he made to the Timex 1510... | December 2, 2024 | |
| Timex/Sinclair Online User Group Meeting January 5, 2026 We discussed VCF event planning, ham radio technology, Spectrum Next FPGA replicas, Jupiter Ace computers, retro computing alternatives, and Eastern... | January 5, 2026 | |
| Timex/Sinclair Online User Group meeting July 11, 2022 In this week's meeting, we talked about the huge amount of documentation Jack Boatwright preserved. | July 11, 2022 | |
| Timex/Sinclair Online User Group Meeting July 7, 2025 James Martin restored a Timex Sinclair 2068 with display issues. Group discussed TS2060 modernization project, planned VCF Midwest 2025 logistics,... | July 7, 2025 | |
| Timex/Sinclair Online User Group Meeting June 22, 2025 Tim Swenson discussed his recent participation in a QL forum meeting; we talked about Forth, chatted about the ZX Spectrum... | June 22, 2025 | |
| Timex/Sinclair Online User Group Meeting March 15, 2026 We talked about archiving milestones, tape recovery techniques, emulator development, preservation concerns, and community history. | March 15, 2026 | |
| Timex/Sinclair Online User Group Meeting March 2, 2026 Our meeting covered keyboard Kickstarter plans, Pascal compilers, AI-assisted coding, TS-Pico debugging, and RAM expansion techniques. | March 2, 2026 | |
| Timex/Sinclair Online User Group Meeting May 17, 2026 Fort Worth user group history, semiconductor fab war stories, the 2060 expansion board project, a Baudot telegraph keyboard interface, Joust... | May 17, 2026 | |
| Timex/Sinclair Online User Group Meeting May 4, 2026 We look at the N-Go Spectrum Next clone from Spain, a PC-8300 ZX81 clone, and various tools for converting images... | May 4, 2026 | |
| Timex/Sinclair Online User Group Meeting November 17, 2024 David, Joe , and Adam discussed a 1983 Timex joystick, noting its unique features and considering a teardown to explore... | November 17, 2024 | |
| Timex/Sinclair Online User Group Meeting October 19, 2025 Carl Miles presented his projects including a 'super' expansion for classic computers, and a modern TS1000 motherboard replacement. David gave... | October 19, 2025 | |
| Timex/Sinclair Online User Group Meeting October 6, 2025 Alger Salt joined and took us back to the early 1980s, when he and a colleague built an analog interface... | October 6, 2025 | |
| Timex/Sinclair Online User Group Meeting Sept 1, 2025 We chatted about preserving Asa Gordon's program from his time at NASA, modern hardware projects, and other Timex/Sinclair topics. | September 1, 2025 | |
| Timex/Sinclair Online User Group Meeting September 21, 2025 We recappped our experiences at VCF Midwest, which took place September 12-13. Many of the group members attended, including folks... | September 21, 2025 | |
| TS Tracker — PT2/PT3 chiptune player for the Timex/Sinclair 2068 This music player for the TS2068 reads ProTracker 2 / Vortex Tracker II songs and plays them through the onboard... | May 17, 2026 |
