Solid state relay (CB8518E)

This circuit was found in a 90s Popular Electronics. Both the coupler and the MOSFET can be of any type.

Amplifiers for small signals (CB7463E
) These two circuits were obtained in a 1977 Radio Handbook. The transistors are from that time,...
Amplifier cascode for 200 MHz (CB10061E)
We found this RF amplifier in documentation from the 1970s. Field effect transistors support...
High Power Flasher (CB6254E)
This high-powered battery powered flasher was found in General Electric documentation from the...