Non Inverting Amplifier (CB6437E)

This non-inverting AC amplifier was found on a Popular Electronics. The setting applies to any operational amplifier.

2-Transistor MW Radio (CB18309E)
This commercial circuit is from a Japanese magazine from 1967. It uses germanium transistors, and...
Darlington Power Switch NPN (CB991E)
This circuit can be used to drive relays, solenoids, motors and other loads according the...
Whistle Remote Control (CB4295E)
This circuit is based on the small keychain that responded to the sound of a whistle and were...