25 W phase control (CB8334E)

This 25 W phase photo control was found in a 1965 General Electric publication. The circuit uses a LASCR which is an unusual SCR photo today.

| Clique na imagem para ampliar |

Telephone decoder (CB10151E)
This circuit was obtained in an 80s documentation on telephony. The components used are TTL, and...
Telephone Line Simulator (CB25592E)
This circuit was found in the August 1993 Electronics Now magazine. It is for telephones used on...
Precision Thermostat (CB4664E)
The sensor of this circuit is a common transistor and the trigger point is set on the trimpot or...