Film marker (CB8347E)

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

| Clique na imagem para ampliar |

Differential relay (CB8839E)
Found in a 1969’s Electronic Design, this circuit operates in a narrow range of voltages....
Power stage (CB23766E)
This power stage with two counterphase transistors and coupling transformers was shown in Radio...
300 Hz Flasher (CB6800E)
Found in old documentation, this circuit uses special discharge lamps (neon) of the time. The...