Light-Operated Switch (CB24048E)

This remote control or light-beam operated switch was found in the June 1970 Radio Electronics magazine. Sensitivity is set at R4.

| Clique na imagem para ampliar |

CMOS frequency divider (CB12762E)
This circuit allows the division of the frequency generated by an oscillator with the 4069 by two,...
Neon Transistor Indicator (CB6696E)
Found in ancient documentation, this circuit uses a high voltage transistor of the time. Observe...
1 MHz Colpitts Clock (CB6469E)
This circuit with TTL compatible output was found in a 1968 US documentation. The circuit is...