DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The sales box of a Western Auto M4986
Citation sold around Winter 1976 in the US. |
This Western Auto M4986 was manufactured
in October 1976 by Texas Instruments in Lubbock, TX (Date code 4376 LTA » week 43 year 1976). |
The M4986
manufactured in October 1976 in Lubbock, TX with the front part of its housing removed.
|
The printed circuit board
(PCB) of the featured M4986 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
3, Western Auto
of the featured M4986. |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, July 5, 2021. No reprints without written permission.