This circuit works with the previous two by demodulating the signals received modulated in FM. The circuit is from the Radio Electronics magazine of December 1992.
This amplifier for a sinusoidal function generator uses a 741 integrated circuit. The circuit is...
This circuit is from Motorola's Linear Interface ICs of 1993. The circuit can be powered by...
This circuit is from 2005 documentation. It automatically starts an irrigation pump when the...