Tuesday, June 5, 2012

One Transistor FM Receiver circuit diagram

This is a very simple FM receiver which build based on one transistor only. No chip or another active component. The output is connected to earphones, you need an amplifier circuit if you want to listen the radio with a loudspeaker.
One Transistor FM Receiver circuit
Part designatorPart description
C1a,C1b10 pf, 50 v, ceramic disc capacitor
C222 pf, 50 v, ceramic disc capacitor
C3RF tuning capacitor
C4330 pf, 50 v, ceramic disc capacitor
C5,C80.001 uf, 50 v, ceramic disc capacitor
C60.22 uf, 50 v, film capacitor
C70.0047 uf, 50 v, ceramic disc capacitor
C922 uf, 16 v, electrolytic capacitor
D1TL431AIZ voltage control Zener (shunt regulator)
EPH1High impedance earphone
L222 uh RF choke
Q12N4416A JFET transistor
R1470K, 1/4 w, resistor
R2, R31K, 1/4 w, resistor
R410K, 1/4 w, resistor
R51M, 1/4 w, resistor
R6100 ohm, 1/4 w, resistor
S1Small SPST switch
screws for C3screws for mounting C3 (2 needed)
nylon screw#4 nylon screw used for tuning C3
battery connectormini battery snap
More instruction how to build this circuit, visit this page

1 comment:

  1. Nice information about Transistor FM Receiver circuit. Really full of knowledge diagram. Everybody can learn from this diagram. I like this post. Thanks for sharing.
    PC Richard

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