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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Pulsed Output Shadow Activated Alarm (CB6432E)
In this circuit of an American documentation of the 90s, when the light is cut, we have the...
Bicolor Sequential LED (CB17071E)
The circuit shown was found in a 1995 documentation. This circuit is powered by a voltage of 6 to...
Regulated power supply (CB21777E)
This simple regulated power supply was found in a 1977 documentation. The zener diode determines the...