DATAMATH CALCULATOR MUSEUM |
Additional Pictures
This SR-50 (Version 2) was manufactured
in November 1974 by
|
The battery compartment of the SR-50. |
The Main printed circuit
board (PCB) of the SR-50 calculator is centered around the TMC0501 and TMC0521 chips supported by many discrete components. |
The Display and Keyboard
PCB of the SR-50 with two Texas Instruments SN27882 display drivers and fourteen individual 7-segment LED-Displays. |
Close-up
view of the TMC0501 Arithmetic Chip.
|
Close-up
view of the TMC0521 Scanning and Read-Only Memory Chip.
|
Close-up
view of the 14-digit LED Display with magnifying
lens. |
Close-up
view of one of the two SN27882 Display Driver Chips.
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If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, August 25, 2023. No reprints without written permission.