This simple circuit was found in a Japanese magazine in 1967. The circuit is listening on a headset and the coil is 50 + 50 turns of wire 28 or thinner on a ferrite rod.
This simple AM transmitter for very small ranges uses in the original version of the 1970s, a...
This circuit for audio signals was found in the March 1990 Radio Electronics magazine. The circuit...
August 2017 - The new DPS1133 power switches from Diodes Incorporated for currents up to 3.3 A...