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Additional Pictures 

 

The Main Integrated Circuits of  the TI-88 "DVT 1 Build" with Serial Number 9-26-81-35 manufactured in September 1981 by
Texas Instruments (Date code 9-26-81 wk 44 yr 1981).

The Main Integrated Circuits of  the TI-88 "DVT 2 Build" with Serial Number 9-26-81-43 manufactured in September 1981 by
Texas Instruments (Date code 9-26-81 wk 44 yr 1981).

The Main Integrated Circuits of  the TI-88 "DVT 3 Clear-Case Build" without Serial Number manufactured in December 1981 by
Texas Instruments (Date code ATA 5181 wk 51 yr 1981).

The Main Integrated Circuits of  the TI-88 "DVT 3 Build" with Serial Number 0000049 manufactured in December 1981 by
Texas Instruments (Date code ATA 5181 wk 51 yr 1981).

The Main Integrated Circuits of  the TI-88 "EVT 1 Build" with Serial Number NTC-3-4-30-82 manufactured in April 1982 by
Texas Instruments (Date code 4-30-82 wk 17 yr 1982).

The Main Integrated Circuits of  the TI-88 "PVT 1 Build" with Serial Number 0000337 manufactured in May 1982 by
Texas Instruments in Abilene, TX (Date code ATA 2182 wk 21 yr 1982).

The Main Integrated Circuits of  the TI-88 "PVT 1 Build" with Serial Number 0000452 manufactured in May 1982 by
Texas Instruments in Abilene, TX (Date code ATA 2182 wk 21 yr 1982).

The Main Integrated Circuits of  the TI-88 "PVT 1.5 Build" with Serial Number 0000341 manufactured in May 1982 by
Texas Instruments in Abilene, TX (Date code ATA 2182 wk 21 yr 1982).
Please notice the Date code 8227 on the CD2901 chip indicating its manufacturing date of July 1982.

The Main Integrated Circuits of  the TI-88 "PVT 1 Build Firmware Engineering Device" with Serial Number 02 693 manufactured in May 1982 by
Texas Instruments in Abilene, TX (Date code ATA 2182 wk 21 yr 1982).
Please notice that all chips are from their final Revision.

The Main Integrated Circuits of  the TI-88 "PVT 2 Build" with Serial Number 0001101 manufactured in August 1982 by
Texas Instruments in Abilene, TX (Date code ATA 3282 wk 32 yr 1982).

The Main Integrated Circuits of  the TI-88 "PVT 3 Build" with Serial Number 0001073 manufactured in August 1982 by
Texas Instruments in Abilene, TX (Date code ATA 3282 wk 32 yr 1982).
Please notice the two resistors soldered to pin 30 and 32 of the CD2901H chip.

The Main Integrated Circuits of  the TI-88 "PVT 4 Build" with Serial Number 0002023 manufactured in August 1982 by
Texas Instruments in Abilene, TX (Date code ATA 3382 wk 33 yr 1982).


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If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, October 9, 2019. No reprints without written permission.