DATAMATH CALCULATOR MUSEUM
|This Texas Instruments
SR-22 was manufactured
construction of the SR-22 makes use of two printed circuit boards
One PCB for the keyboard and a second one for the main electronics.
of the SR-22 with the TMS02XX/03XX/04XX chip-set
and some discrete driver electronics for the Panaplex II display.
|Close-up view of the
TMS0207, TMC0323, and TMC0404 integrated circuits.
|The power supply
AC 9222 for the SR-22.
SR-20 and SR-22 side by side.
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© Joerg Woerner, May 5, 2002. No reprints without written permission.