Light-sensitive circuit (CB23962E)

We found this circuit in a Radio Electronics issue from July 1969. The lamp remains on until C1 opens. The time is given by capacitor C1.

| Clique na imagem para ampliar |

Improved Astible Multivibrator (CB19367E)
This configuration, which appears elsewhere on this site, was found in documentation from the...
DC Voltmeter TL430 (CB19744E)
This unusual configuration, due to the component it uses, was found in an old European...
Analog Multiplexer (CB21250E)
This low impedance circuit was found in an Electronic Design from the 90's. Operational amplifiers admit...