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Additional Pictures 

 

Complete Display Scanning Cycle of the µPD273 from an Brother PROCAL 408AY (Version 2) manufactured in January 1974 displaying "-104.679"
and captured with the Digilent Digital Discovery connected to the DCM-50A Platform. µPD273 Clock Frequency at 30 kHz.

Close-up view of the transition between Digit D3 displaying "6" and Digit D4 displaying "4" of the µPD273 showing the Trailing Digit and Segment Blanking Times.


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© Joerg Woerner, April 18, 2025. No reprints without written permission.