This 4-channel mixer amplifier was found in an American publication from 1947. The circuit uses counterphase output tubes and a transformer power source.
This circuit, found in a 2008 documentation, is intended for operation by radio amateurs in the 7...
This small FM transmitter for short distances has a stereo multiplexer and can be used over an...
This circuit was found in a Radio Electronics from the 90's. The maximum current is 1 A. | Clique...