DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

Complete Display and Keyboard Scanning Cycle of the HD3633 from a Lloyd's Accumatic 30 manufactured in February 1975 displaying "-104.679"
and captured with the Digilent Digital Discovery connected to the DCM-50A Platform. HD3633 Clock Frequency at 80 kHz.

Close-up view of the transition between Digit D4 displaying "6" and Digit D5 displaying "4" of the HD3633 showing the Leading and Trailing Digit Blanking Times.


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

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