Touch switch (CB9375E)

This biestable circuit was found in a Popular Electronics from the 90s. The circuit has an unusual configuration today, using components of the time.

| Clique na imagem para ampliar |

Simple 27 MHz Receiver and Field Meter (CB19603E)
This circuit is from a documentation from the 70s. The transistors are types of germanium of the...
Picoammeter (CB6195E)
This circuit was found in RCA and General Electric documentation from the 1980s. The circuit has...
Current Booster (CB13197E)
This configuration from an American publication from the 1970s shows how to use a pair of power...