This is an amplifier circuit intended for modulating transmitters. The 5-tube circuit is from an American manual from 1947. The power supply uses a transformer.
This oscillator that operates at 80 kHz was found in the July 1993 issue of Electronics Now...
This circuit is from an Electronics Now, American magazine from December 1992. The magazine no...
This bistable touch sensitive must not be powered by a source without a transformer. The outputs can...