DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

The printed circuit board (PCB) of a Brother Model 827R (Version 2) calculator manufactured in September 1974 with its (mirrored) backside.

The PCB of the DC/DC converter with its (mirrored) backside.


horizontal rule

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

© Joerg Woerner, May 12, 2024. No reprints without written permission.