Crystal Am Transmitter Circuit. Brief demo of a pieced together low power am transmitter circuit with individual rf modules borrowed from several sources noted below transmitting on a f. A simple op amp radio basically consists of a crystal radio along with a fairly sensitive audio amplifier.
Brief demo of a pieced together low power am transmitter circuit with individual rf modules borrowed from several sources noted below transmitting on a f. This is a low cost simple radio circuit based on opamp which can be used to listen to nearby stations. Connect a 3 meter antenna to the middle pin of the coil.
Choose a crystal frequency away from strong local stations at or above 800 khz for best transmit range.
Crystal oscillators can be used in a large number of applications in electronics and radio. At the first the audio signal is collected using microphone or audio jack 3 5mm. Connect ground of the circuit to your earth connection for crystal radio testing or your water pipe. Brief demo of a pieced together low power am transmitter circuit with individual rf modules borrowed from several sources noted below transmitting on a f.
