RF oscillator circuit (2N3904)

This basic RF oscillator circuit is easy to build and the components are not critical. Most of them can be found in your junk parts box. The L1 antenna col can be made by close winding 8 to 10 turns of 22 gauge insulted hookup wire around 1/4 inch form such as a pencil.

RF oscillator circuit (2N3904) - img1

You can experiment with the size of the coul and the number of turns to see how it affects the frequency and signal output of the oscillator. You should be able to pick up its signal with standar FM radio receiver. The Signal In should be coupled by disc capacitor of about 0.1uF to the stage in front of it.

Recommended videos

  • Electronic Basics #17: Oscillators || RC, LC, Crystal
    Duration: 6:02.
  • Electronics: Introduction to LC Oscillators circa 1974 US Air Force Training Film
    Duration: 19:55.
  • Tuned Collector Oscillator- Transistor Oscillator
    Duration: 11:45.




Rating: 0.00 / 10 (0 Vote cast)

Leave Comment

characters left: