Three-phase converter (CB21931E)

This circuit was found in the RCA Power Transistor manual from the 70's. The circuit uses power transistors of the time.

Adapter for 4-track oscilloscope (CB7062E)
Found in a Popular Electronics from the 90s, this circuit transforms an ordinary oscilloscope into a...
Fish Atractor (CB13179E)
The circuit shown is from an American publication from 1970. It produces a tone that attracts fish...
Current Monitor LT1789 (CB5224E)
This High Side Current Monitor was found in a 2005 Linear Technology White Paper. The circuit...