DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

Main PCB of a SR-51 calculator. The brain
of the calculator uses the TMC0501 and
a stack of 2 SCOM (TMC0522,523) circuits. 
The second PCB holds the keys, display
and driver circuits.


If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner, March 25, 2002. No reprints without written permission.