Half wave control (CB21375E)

This circuit for heating elements was taken from a 1966 General Electric manual. The SCRs are load-according, and the sensor is 1 ohm.

| Clique na imagem para ampliar |

Triac dimmer (CB7857E)
We have dozens of similar projects in articles and circuits on this site. This is from Radio...
Super regenerative detector (CB24292E)
This circuit with an unusual configuration was found in the January 1974 issue of Radio...
Low Voltage Regulator (CB6406E)
This interesting circuit from 1967 documentation uses three series lamps to regulate the voltage...