DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
| Keyboard Scanning
Pulse to D5 Display Output transition of the GI 251F from a Litton Royal
Digital V manufactured in May 1972 while displaying "-104.6790" and captured with the Digilent Digital Discovery connected to the DCM-50A Platform. GI 251F Clock Frequency at 100 kHz.  |
| D8 Display Output
to Keyboard Scanning Pulse transition of the GI 251F from a Litton Royal
Digital V manufactured in May 1972 while displaying "-104.6790" and captured with the Digilent Digital Discovery connected to the DCM-50A Platform. GI 251F Clock Frequency at 100 kHz.  |
| Keyboard Scanning
Pulse to D1 Display Output transition of the GI 251F from a Litton Royal
Digital V manufactured in May 1972 while displaying "-104.6790" and captured with the Digilent Digital Discovery connected to the DCM-50A Platform. GI 251F Clock Frequency at 100 kHz.  |
| D4 Display Output
to Keyboard Scanning Pulse transition of the GI 251F from a Litton Royal
Digital V manufactured in May 1972 while displaying "-104.6790" and captured with the Digilent Digital Discovery connected to the DCM-50A Platform. GI 251F Clock Frequency at 100 kHz.  |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, November 17, 2025. No reprints without written permission.