DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
This Texas Instruments
SR-22 was manufactured
early
in 1974. |
| The
internal
construction of the SR-22 makes use of two printed circuit boards
(PCBs). One PCB for the keyboard and a second one for the main electronics.
|
| The Main-PCB
of the SR-22 with the TMS0200 Chipset and some discrete driver electronics for the Panaplex II display.
|
| Close-up view of the
TMS0207, TMC0323, and TMC0404 integrated circuits.
|
| The base
selector LED's.
|
The power supply
AC 9222 for the SR-22. |
| The siblings
SR-20 and SR-22 side by side.
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If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, May 5, 2002. No reprints without written permission.
