The pre-TS 2068 computers connected directly to the user’s television. It was a good solution and it worked for many. Some users, however, preferred to use a dedicated monitor and that required a direct video interface.
Another popular upgrade added color graphics and sprites to the TS 1000. These were often based on the Texas Instruments TMS9918A video display processor, the same chip used in the TI 99/4A computer. With one of these adapters, a TS 1000 could have more powerful graphics than an Apple II or comparable graphics to a Commodore 64.
Video upgrade based on the Texas Instruments TMS9918A video display processor (VDP) designed by Daniel Roy. An article about the design, So You Wished You Had Bought a TS2000, by Roy was published in Sync v3 n4. Compusa announced it as “coming soon” in their ad in Sync v3 n6, two issues before the magazine
TS 1000
Documentation packet that covers video trouble shooting tips, UHF conversion, fine tuner for the RF modulator, direct and reverse video.
TS 1000
TS 1000
Provides direct composite out with option to invert video. Not compatible with units with UHF modulator. Steve Pence wrote an article describing this upgrade that was published in the May 1983 issue of Computers & Electronics.
TS 1000
Allows connection of standard (composite video) computer monitor to Sinclair computers for noise-free display. Two transistor circuit.
TS 1000
Provides direct monitor connection and inverted signal for white-on-black.
TS 1000
Permits normal black on white or inverse video on black. Solders inside case.
TS 1000
Texas Instruments TMS9918 video display processor (VDP) adaptor for the TS 1000. All of the features of the TMS9918, including: 32 sprites 256 x 192 pixel graphics User defined characters Extension of Basic commands include PAPER, INK, BORDER, BIN, SPRITE, OUT, INP 16K RAM dedicated to the VDP James Hastings-Trew, a Kolorworks owner, wrote a
TS 1000
Connect TS2068 to an RGB monitor. Plugs into rear expansion connector. Includes through-buss connector.
TS 2068
Inverts video signal to display white on black. Installs inside computer; option switch to select normal or inverse.
TS 1000
Two board, extensive upgrade that integrates the TMS 9918A video display processor into the ZX81/TS1000. Provides: color multiple graphics resolutions, up to 256×192 pixels up to 32 sprites a SLOW mode almost as fast as FAST mode blink free FAST mode lower case characters instead of inverse upper case Interfaces the TMS 9918A color graphics
TS 1000
Replaces the VHF (ch 2-3) modulator on the ZX81 circuit board. UHF is less sensitive to the interference radiated from the computer or its peripherals.
TS 1000
ZX80
Circuit to invert video signal (white on black); fits inside computer. Switch to select normal or inverted video.
TS 1000