DATAMATH CALCULATOR MUSEUM
on the backside of the SR-40 with an impressive
serial number: 001P or 1st Prototype.
|The printed circuit board
(PCB) of the SR-40 is similar to the later SR-16
Please notice the different arrangement of the battery contacts,
the TMS1111 using a socket and the small coil of the power supply.
of the SR-40 with a standard 14 digit stripe known from the SR-50A.
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© Bob Patton and Joerg Woerner, February 18, 2003. No reprints without written permission.