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.

40m Band CW transmitter (CB17666E)
This circuit, found in a 2008 documentation, is intended for operation by radio amateurs in the 7...
Stereo FM Transmitter (CB16538E)
This small FM transmitter for short distances has a stereo multiplexer and can be used over an...
15V symmetric power supply (CB21188E)
This circuit was found in a Radio Electronics from the 90's. The maximum current is 1 A. | Clique...