DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The sales box of a
True Value T-1225 calculator sold around Summer 1976 in the US. |
This True Value T-1225 was manufactured
in June 1976 by Texas Instruments in Lubbock, TX (Date code 2576 LTA » week 25 year 1976). |
The T-1225 manufactured
in June 1976 in Lubbock, TX with the front part of its housing removed.
|
The printed circuit board
(PCB) of the featured T-1225 is centered around a TMS0972 single-chip calculator circuit. |
Close-up view of the
TMS0972 packaged in a 28-pin DIP (Dual In-line Package). |
Product Label Style
4, A-Series 6-Digit of the featured T-1225. |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, July 7, 2021. No reprints without written permission.