This frequency shift modulation circuit was found in the November 1994 issue of Electronics Now magazine. The circuit operates at low frequencies.
This circuit is used to protect an amplifier from excessive power output that would cause problems for...
This circuit was found in a French magazine Toute LÉlectronique from 1978. Transistors are not...
This circuit was found in documentation from the 50's. The circuit uses transistors of the time...