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Timex/Sinclair 1000

Manufacturer Sinclair Research Limited
Model Timex/Sinclair 1000
Date Announced July 1982
Date Canceled Unknown
Number Produced Hundreds of thousands to millions
Country of Origin United Kingdom
Price $99.95 base
Current Value $10 +/-
Processor Zilog Z80
Speed 3.25 MHz
RAM 2K (base)
Storage Cassette Tape
Expansion Expansion bus usually for RAM expansion
Bus Proprietary
Video 32x22 text, 64x44 graphics - B/W
I/O Expansion Bus
OS Options Cassette BASIC
Notes The TS-1000 was the American version of the Sinclair ZX-81 which followed the successful Sinclair ZX-80. The popularity of these machines was driven by their low price. In an era of $1,000 computers a machine that came in at $100 to start was noticed.
Related Items in Collection Another TS-1000, books, etc.
Related Items Wanted Printer, additional RAM and software.

The TS-1000s in my collection are not yet tested.

Included in the collection are the machines, manuals, at least one RAM expansion (16K) and some software on cassette.

Timex/Sinclair 1000 with 16K RAM attachment
Timex/Sinclair 1000 Manual
Timex/Sinclair 1000 Software Packs on Cassette

Thank you to Eric Lakin for the generous donation of a TS-1000 with docs, etc.

(Submitted October 3, 2012 21:20:34 by TS-QL-Mac)

Today - NOW - people text on phones with little keyboards that are half the size of the Timex, and still everybody complains about the little Keyboard on the ZX-TS unit. The secret was to take 2 new pencils and hold them and polk with the erasers on the keys of the timex. U could key up the programming keywords almost as fast as you could say them. The TS1500 was the king of little computers that would run forever. I left it on in a basement with a programs loaded for over 5 years and it never crashed ! ALL was lost when the basement was flooded a year later back then. AND if anyone has the schematics for these - meaning TS1000, 1500, 2068 and QL - kindly drop an email.

(Submitted September 23, 2012 13:23:56 by Lee Wilkerson)

My first computer was a TS-1000 for $50 at Radio Shack. Took it home with the two books and proceeded to key in every one of the programs in those books plus a few more (and then I had to figure out why some didn't work because of my shoddy typing skills. Sent money to Sinclair Corp. in England and got schematics. About 2 hours of cutting, drilling, and installing jumpers and I had 8K installed internally with the possibility of piggybacking another 8K chip or 3 or 4 later. Since I didn't have a printer, I handwrote the instructions in a notebook, photocopied them, and passed them out to some of my friends in and around Lexington, KY. Enter the TI 99/4A (QI), and I basically relegated the TS to the closet shelf from which a 'friend' stole it. Ahh, those were the days...

(Submitted April 16, 2011 09:19:36 by James Meisenham)

Looking for a TS100 complete in box. Contact me if you are willing to sell your TS1000. Oh, and a 16K RAM pack would be nice as well.

(Submitted March 3, 2011 18:00:50 by Kevin Ward )

My first home computer, I wrote animation software , did machine code (wow fast) programing, even had a flight simulator. I even found a aftermarket clone in a shop in Toronto. Had a way better keypad, raised rubber keys, I wore out 2 keypads on mine I used it so much, eventually bought a aftermarket keyboard with real keys. My favorite thing I did with mine was a parallel output board, used it for a light control board with triacs, good times, was able to program light shows .

(Submitted December 10, 2010 16:57:14 by (a href=mailto:christianmouseNOSPAMatgmailNOSPAMdotcom)JT(/a))

I just picked up a like new Timex Sinclair 1000 with original packaging/contents, 16K RAM Module (again like new with original packaging) and 8 tapes for FREE off of Craigslist. I am so happy. My dad and I learned how to program off of one of these back when they first came out!

(Submitted October 25, 2010 17:15:55 by Dowe Keller)

Some positive attributes for the TS1000: 1. It was cheap. 2. It had a decent BASIC with graphics commands. 3. It had a damn good manual that one could learn how to program with (I did). 4. Did I mention how f*cking cheap it was?

(Submitted September 28, 2010 15:49:43 by Don9992)

This was my first computer. They had BASIC in ROM so we'd code programs in and save them to a cassette audio player. I remember it took ~5 minutes to save or load the simple programs. As often or not, the load would be bad and you'd have to start over.

(Submitted June 5, 2010 16:46:09 by Buddha)

I remember buying one of these at the Navy Exchange in Yokosuka Japan when I was in the mavy there back when they first came out. I absolutely hated the keyboard, and wound up ordering a supposed fix for it, I don't remember from where. It turned out to be a cheesy plastic plate that you glued onto your existing keyboard that had small posts that pressed the existing keys for you. Silly me, I thought I was getting a replacement keyboard. Despite all this, I had fun with the system and learned Basic programming in the process.

(Submitted June 4, 2010 18:13:59 by Nubo)

A friend had one of these, with no permanent storage so we had to key in programs from scratch! The thing would overheat after about a half hour so we'd sit a bowl of ice on it to get enough runtime to key in the program and use it. Fun times!

(Submitted March 16, 2010 05:12:41 by Robert)

The reason I landed here is that I was looking for the TS1500 Schematic. Does anyone know where I can get a schematic of the TS1500 (Timex Sinclair 1500)? I've just repaired one, but one lead of coil L4 is broken loose and I don't know where to reattach it (I don't want to open my other TS-1500 just to look for the coil connection, but may have to if I can't find the schematic). The interesting thing about this machine is that several of the 4116's were bad, and the mask ROM was blank (contained all $FF's - I burned an eprom and replaced the mask ROM with that.) After replacing a couple of the 4116's and replacing the ROM the machine works great, but I don't want to leave the lead of L4 unconnected - a schematic would be great. The one from would be great, but it's not there anymore ( - I can't find it anywhere. Any help would be greatly appreciated. -Robert

(Submitted February 26, 2010 00:51:11 by Dowe Keller)

My first computer was a TS1000, when people now complain that it was slow, and had a rotten excuse for a keyboard, I just have to shake my head, not because they're wrong, but because it was also amazingly affordable.

I bought my TS1000 with my measly allowance money, there's no way I could have saved up to buy an Apple ][ or even a TRS-80 or PET, but I was able to buy my own computer and learn to program, I loved my TS1000, and it still owns a small black wedge shaped place in my heart.

(Submitted November 19, 2009 15:04:01 by (a Stephens(/a))

If I remember this correctly, part of the reason this computer was so inexpensive and slow is because the video interface was implemented in *software*, it could only run your program during the horizontal and vertical retrace!

(Submitted October 25, 2009 07:53:56 by Bill McCormack)

Yes, it was slow, but affordable. I was a COBOL programmer when this came out and I used one to teach my kids basic programming at home. My oldest son used it to create a menu for a local restaurant, funny, he now owns a restaurant and a computer. You never know.

(Submitted May 15, 2009 08:11:58 by xinpheld)

This was my first computer. It drove me crazy with its slowness. But I used it anyway, because hey, it was a computer! In my own house!

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