The world of spectrum faq, maintained by arjun nair. Home periodicals sq syntax quarterly zx81 schematic. The timex sinclair was introduced in july of 1982 as the american version of the sinclair zx81 heres a couple links for doing a composite video modification. If you have a zx81 or timex sinclair and hook it into a av input to most digital tvs youll get an almost unreadable signal. This app focuses on the sinclair zx81 experience and is loaded with example software. The sinclair zx81 timex sinclair computer youtube. This is a rewrite of the classic arcade game, klingons. Part of that order included replacement capacitors for the electrolytic capacitors in the timex sinclair. This resulted in the machine crashing out when it was nudged. The choice of partnership was natural, as timex was already the main contractor for manufacture of sinclair s zx81 and zx spectrum computers at its scottish plant in dundee.
Timex sinclair was a joint venture between the british company sinclair research and timex corporation in an effort to gain an entry into the rapidly growing early1980s home computer market in north america. July timex computer begins selling the timex sinclair through over timex retail outlets. In revision 3 they had put it in since tvs were becoming more sensitive to the lack of a back porch. Sinclair s licensing agreement with timex enabled the american company to produce three clones or offshoots of sinclair machines for the us market. All books appear to have received relatively light use. Vintage timex sinclair computer still in the original box and accessories. The changing complexion of timexsinclair computing seen at the orlando 1988 winter fest ts2068 update this issue of update was delayed a week to report upon the orlando 1988 winter fest.
Z81 a zx81 emulator for vga pcs running linux xz81 a zx81 emulator for x z81txt a textmode zx81 emulator for the linux console. Timex sinclair micro computer with a top keyboard untested. Vtg vu3d timex sinclair software owners guide operating instruction manual book. The timex sinclair or as it was known in england sinclair zx81 was the second machine to be released by sir clive sinclair. The magazine contained the usual array of expected content including technical articles and program listings.
Documentary the sinclair zx80, zx81, and timex sinclair the 8bit guy. Features fullscreen sharing embed analytics article stories visual stories seo. This article describes the final solution that i used to make both roms available to my zx80. Home periodicals sq syntax quarterly 16k ram pack schematic. This machine did not have a 32k ram upgrade as you stated it actually had a 16k ram upgrade that connected to the zx81 via a flimsy port at the rear. The timex sinclair is the north american version of the sinclair zx81, from british based sinclair research ltd. Mpc electronics music percussion computer play what you. Sync magazine was a relatively shortlived glossy magazine dedicated to the timex sinclair zx80 zx81 models of computers. They made 3 revisions and they cheated in the first 2 by having no back porch in the video output. Contained an ntsc rf modulator replacing the pal version.
The modification is very simple and requires only a soldering iron, an spdt switch, and a few inches of wire. Supplied as either a full version for the expanded sinclair zx81, timex sinclair ts and ts1500 min 4k ram, a 2k version for an unexpanded timex 2kb of ram and a 1k cutdown version. In this video we take a look at the timex sinclair , a lowcost microcomputer from the early 1980s. Home periodicals sync schematic of sinclair 16k ram pack. The software support 8217 s gpu 8217 s from both amd and nvidia to accelerate the work. With the timex sinclair it is very easy, the computer came with a 2k ram chip already installed in a ram socket. The zx81 was designed to be small, simple, and above all, inexpensive, with as few components as possible. Timex sinclair pc with 16k ram, software, manuals, adapter. 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 didnt work because of my shoddy typing skills. These were the timex sinclair , timex sinclair 1500 both variants of the zx81 and the timex sinclair 2068 a variant of the zx spectrum. Thanks to its price, the timex sinclair sold over 600,000 units in the united states source. They are nearly identical, except for the name on the front, and minor motherboard layout differences.
I suggest you track down someone else with a timex sinclair who will hopefully read the polarity diagram from its power supply, or has a multimeter handy in order to check. Timex sinclair computer manual 1016 16k ram module. View and download timex sinclair 1500 user manual online. The diggles kitchen micro computer software uk the electronic checkbook timeworks, inc. The essential guide to timex sinclair home computers. Jan 31, 2011 here is a complete working vintage timex sinclair computer setup running a program called vucalc a excel type spreadsheet. Its small circuit board only contained four ics and a few components. Four great games for the timex sinclair mothership, sea war, monster maze, mazogs. It was very similar to zx81, it only contained more ram 2k and had ntsc tv modulator with switch allowing to switch between channel 2 and 3. Milazzo, describing a way of transmitting your zx81 programs and data to other computers, such as the commodore c64. Also example of a working sinclair 2040 printer from the.
Used huge lot vintage pc timex sinclair zx81 manuals. Representing the western usa was tim and stephanie woods time designs magazine, and the central usa was represented by the staff of syncware news and attendees from the michigan user group. Timex sinclair 1500 computer steves computer collection. The timex sinclair launched in the summer of 1982.
Timex sinclair ts timex sinclair is a result of joint venture between sinclair research ltd and timex corporation. If you are looking for information on the zx81, including emulators and downloads, a good place to start would be the sinclair zx81 webring, as well as the sinclair zx80 and zx81 computer forums. Texter bob lucasbarlog software textwriter curry computer the bookkeeper gibson data services the cambridge collection richard francis the check book softsync, inc. Personal computer software for timex sinclair dataquester personal finance planner timex computer corporation phrase challenge funtech software pick em stuart software picture plot bob lucasbarlog software pinball timex computer corporation plane frame zeta software plotting work sheet ezra group ii plotting work sheet. The mpc master module consists of eight touchsensitive pads of abs plastic, which you can play with your hands or with sticks. The popularity of these machines was driven by their low price. The watchmakers guidebook to the timex sinclair computer.
Jun 09, 2019 the timex sinclair launched in the summer of 1982. New sinclair zx81 timex sinclair timex sinclair 1500 hardware. In my continuing efforts to find people from the timex sinclair past i found two gentleman who were, at some point, the owners of byte. That means i just needed to get a 62256 ram chip which is 32k, but i will only be using 16k of it, and run 4 wires. January timex introduces the timexsinclair 2000, which is their repackaged sinclair spectrum for the north. Unauthorized zx81 clones were produced in several countries. Byte magazine volume 08 number 01 internet archive. I say something about the history of the computer, go over its hardware and software. Huge lot vintage pc timex sinclair zx81 manuals literature reference guides oop you are purchasing a huge lot vintage pc timex sinclair zx81 manuals literature reference guides oop very good condition. Thanks to the enthusiasm shown for the sinclair zx81, we are working to release new and replacement hardware for the humble zeddy. Please note that the system is completely self contained and this means you cannot remotely add code, more games etc. Finally, in july 1983, the transformation is complete. Unfollow timex sinclair to stop getting updates on your ebay feed. Timex sinclair user manual by olivier boisseau issuu.
Pet ascii output program for the timexsinclair zx81 introduction by syncware news technical director, fred nachbaur here is another article by carol f. Spectrum faq, 301105 since the faq is no longer maintained, for technical details you may want to see the tech info wiki. In spite of the flaws in the early versions, half a million units were sold in the first six months alone. The rf modulator is different for the us timex model and the us zx81 which they did sell some of, there are a few other differences.
The sinclair zx80, zx81, and timex sinclair youtube. With appreciation to sir clive sinclair and timex computer corporation member tsnug timexsinclair northamerican user groups. Recap and 16k internal ram travis durf retro computers, sinclair december 16, 2019 december 25, 2019 6 minutes today my order from jameco came in. August sinclair research reports that it has shipped 500,000 zx81 personal computers in over 30 countries. Astronomy on your computer on free shipping on qualified orders.
The timex came with 2k of ram rather than 1k like the zx81 came with and outputs to 60hz ntsc video while the uk model does 50hz pal video output. Although still identical to the sinclair zx81, it will now be known as the timex sinclair. The cartridge plugs into the dock port and the interface onto the rear buss expander. Timex sinclair user was a nice glossy magazine devoted to the ts and sinclair zx8081. The timex sinclair ts was the first computer produced by timex sinclair, a joint venture between timex corporation and sinclair research. Designers marketers social media managers publishers. Nov 19, 2016 ts multiregion composite video modification following on from the previous post on zx81 composite video modifications, the same can also be done on the timex sinclair. The lowly sinclair zx80 has now morphed into the semiuseable timex sinclair 1500, sporting a brandnew keyboard and much more internal ram. The timex sinclair s performance was infamously slowbecause the computer contained a mere four chips, it relied on its cpu to handle all of its processing and refresh whatever external display it was attached to. Please check out similar items and the other great stuff in our store. Monthly magazine for timex sinclair computer users. Of course the modem software was primitive because compuserve. Dead timex sinclair help classic computing atariage. Jul 31, 2015 in this video we take a look at the timex sinclair, a lowcost microcomputer from the early 1980s.
Otherwise, it looks to be in amazing condition for its age. Sinclair zx81 raspberry pi emulator, with large software collection. The ts was the american version of the sinclair zx81 which followed the successful sinclair zx80. The ts is basically a zx81 with a bit more shielding and a different tv modulator. This was obtained in the early 90s from an engineering friend who came from a teaching background in the buffalo, ny area.
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