DATAMATH CALCULATOR MUSEUM |
Additional Pictures
This TI-1250 Version 4
was manufactured
in June 1977 by Texas Instruments in Hong Kong (Date code 2577 HK » week 25 year 1977).
|
The TI-1250
Version 4 manufactured
in June 1977 in Hong Kong with the front part of its housing removed. |
The printed circuit board
(PCB) Type 4 of the featured TI-1250 is centered around a TMS0972 single-chip calculator circuit.
|
Close-up view of the
TMS0972 packaged in a 28-pin SPDIP (Shrink Plastic Dual In-line Package). |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, November 26, 2008. No reprints without written permission.