RF Transmitter Electronic Circuits


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RF (Radio Frequency) Transmitter Circuits
RF (Radio Frequency) Transmitter: #'s - B C - F G - S T- Z
Last Updated on: Monday, August 18, 2008 04:17 PM

Circuits Designed by Dave Johnson, P.E. :

Plastic Pipe Finder
I used this circuit once to track down the location of a plastic pipe, buried underground. It transmits a weak RF signal, which can be picked up by a portable AM radio from about 6 feet away.

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

HAM Radio BFO: circuit diagram of beat frequency oscillator using BF494 and how to listen amateur radio communication on ordinary BC receiver. . (added 01/05)

Hear Amateurs on your FM Radio!: (added 2/05)

Light Sensing RF Transmitter: (added 8/03)

MicroPower FM Broadcasting Circuits: (added 9/02)

Multiband CW Transmitter: (Electronic circuit design added 02/05)

Phasing SSB Exciter: (added 8/03)

Simplest RF Transmitter: (Circuit added 9/04)

Small FM Transmitter: (Electronic Schematic / circuit added 4/02)

RF (Radio Frequency) Transmitter: #'s - B C - F G - S T- Z