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Timex Sinclair 2068

Differences of Timex Sinclair 2068 to Timex Computer 2068:

  • Smaller cartridge slot hight.
  • Faster clock - 14.112MHz to 14MHz.
  • Other pinout of SCLD (ULA).
  • NTSC video output.
  • 15V power supply to 9V.
  • Home cartridge not allowed.
  • Edge bus compatibile to ZX81 and far from TC2068 one.
  • IOA5 (from AY) available on edge slot (for BEU).
  • Internal line driver (amplifier) on address lines.
  • No /IORQGE nor /ROMCS lines on edge slot.
  • Screened case.

The Z80CPU clock in Timex Sinclair 2068 is 3.528MHz, not 3.58MHz as written on many places.

Twister Board

It is a small interface that converts (the ZX81 compatibile) edge slot of Timex Sinclair 2068 into ZX Spectrum compatibile one. The compatibility isn't 100% perfect: Timex Sinclair 2068 doesn't have a signal to disable internal ports (like /IORQGE in ZX Spectrum).

Twister Board allows to connect most of ZX Spectrum interfaces, including the Timex Interface M-397 (for Timex FDD).


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Files for download

twister2.jpg 27.8kB (2003-03-03 13:00)
Twister Board mounted, top view.
twister1.jpg 24.0kB (2003-03-02 02:34)
Twister Board top view.
ts2068tm.pdf 2747.0kB (1998-05-13 11:05)
Timex Sinclair 2068 Technical Manual.

Links to other pages

http://www.outlawnet.com/~jboatno4/
Timex Sinclair Showcase by Jack Boatwright.
http://groups.yahoo.com/group/ts2068/
Discussion group in America.
http://www.timexsinclair.org/
Unofficial Timex Sinclair 2068 Site.

See also

Timex Computer 2068
Timex Computer 2068.
Unipolbrit Komputer 2086
Unipolbrit Komputer 2086. Polish version of Timex Computer 2068.
BEU - Timex Bus Expansion Unit
Never released expansion for Timex Sinclair 2068 (kind of Plug&Play). Articles by Wes Brzozowski -- analysis how the BEU would work if were finished, from scatterd informations.

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© 2009-12-28 21:50 Jarek Adamski, http://8bit.yarek.pl