Film marker (CB8347E)

Used with old projector films, this circuit found in Signalite documentation from the 1980s, records digital information on 35 mm films.

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Shift Register Using the 4027 (CB155E)
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Pure sine generator (CB8429E)
Found in a Maxim publication from the 90s, this circuit generates signals from 10 to 25 kHz with a...
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