Welcome to TimexSinclair.com, your definitive resource for everything related to the Sinclair and Timex/Sinclair computers in the United States. From the groundbreaking Sinclair ZX81 that brought affordable computing to American homes in 1982, to the Timex/Sinclair 2068, we celebrate these remarkable machines that introduced a generation to the world of programming and digital innovation.

Timex/Sinclair

The American chapter—Timex brought Sinclair’s vision to U.S. homes.

1982

Timex/Sinclair 1000

The U.S. version of the ZX81, available for under $100 at retail stores across America. This machine democratized computing in the United States.

Explore the T/S1000
1983

Timex/Sinclair 1500

Enhanced version of the Timex/Sinclair 1000 with 16K RAM built in, ZX Spectrum style case and keyboard.

Explore the T/S1500
1983

Timex/Sinclair 2068

Color graphics, sound capabilities, and a cartridge port made the 2068 the ultimate U.S. Sinclair experience with serious computing power.

Explore the T/S2068

Sinclair

The pioneering machines from Clive Sinclair that revolutionized home computing.

1980

Sinclair ZX80

The machine that started it all—revolutionary for its price point and brought computing to everyday people.

Explore the ZX80
1981

Sinclair ZX81

The machine that brought computing to the masses. Sold over 1.5 million units worldwide—legendary affordability and hackability made it an icon.

Explore the ZX81
1982

Sinclair ZX Spectrum

The ZX Spectrum brought vibrant color graphics and sound to the home computer market, selling over 5 million units worldwide.

Explore the ZX Spectrum
1984

Sinclair QL

Sinclair’s ambitious 32-bit business computer. Multitasking OS, built-in Microdrives—ahead of its time with professional aspirations.

Explore the QL
1987

Cambridge Z88

Sinclair’s ambitious 32-bit business computer. Multitasking OS, built-in Microdrives—ahead of its time with professional aspirations.

Explore the Z88

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We have a YouTube channel, active email list and more! We meet via Zoom on the first Monday and third Sunday of each month to chat about our favorite computers, projects and more. Each meeting is recorded and posted to YouTube. You can watch some of our most recent meetings below.

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I ordered the Timex 2050 modem back in January hoping I would get it in time to use in a class I was taking at the University of Florida. Of course I never saw it during that time. Finally I called Timex and was told that Westridge Communications in Marina Del Ray, CA had a…article, orig pub: 01.14.23, updated: 06.20.26
The Suntronics KD-81 Keyboard is a fully cased keyboard with full-size keys, including 2 shift keys, and a space bar. The printed circuit board from the computer fits inside the new plastic keyboard’s vaporized metal coated case. Assembly requires attaching the PC board inside the case with 5 screws and slipping the keyboard’s ribbon cables…article, orig pub: 01.14.23, updated: 06.20.26
I stated in the last issue that we ordered the Rotronics Wafadrive system from England. I also promised that I would give a report on it. Unfortunately, we have yet to receive it. Anticipating it’s arrival I have prepared a Spectrum buss to plug the unit into. We have already received the operations manual and…article, orig pub: 01.15.23, updated: 06.20.26
In this article, I will discuss some of the problems that can occur with the 16K RAM pack for the ZX81 , TS 1000, and TS 1500. As I said in my last article, RAM pack ‘wobble’ is the most common problem and can be cured by cleaning the connector, raising the RAM pack off…article, orig pub: 01.15.23, updated: 06.20.26
Memotech has just released three (four if you count the keyboard) new products. These three new add-ons are firmware, which is software that resides permanently on an EPROM. MEMOCALC is a spreadsheet analysis program which enables users to perform complex number crunching routines with ease. Up to 7,000 numbers with up to 250 rows or…article, orig pub: 01.14.23, updated: 06.20.26
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