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 |

Dual 18 V power supply (CB25266E)
Suggested to power the previous circuit, this power supply was found in the December 1990 issue of...
Autotransformer (CB24077E)
This is a very useful autotransformer circuit on the bench. We found it in the September 1970...
Driver Darlington (CB8957E)
This circuit was obtained in a 1960 documentation of General Electric. It is applied in the...