DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

The printed circuit boards (PCBs) of a BA-20 Profit Manager manufactured in July 1986 (left) and a BA-20 Profit Manager from March 2007 (right).


horizontal rule

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

Joerg Woerner, April 5, 2020. No reprints without written permission.