This amplifier circuit with a low power MOSFET was found in Popular Electronics from the 90s. The circuit uses a small transformer of the type found in old transistor radios.
This basic circuit can be used in signal followers and other applications where an RF signal is to be...
This IR light sensor circuit was found in the July 1992 issue of Radio Electronics magazine. It is...
This circuit is nothing more than a turn signal for two alternating LEDs that can decorate a robot...