Fm Generator

Posted on Dec 6, 2012

The internal zener on pin 15 of the 4046B supplies a stable voltage to the 3140IC op amp. This amplifier modulates the 4046B V

Fm Generator
Click here to download the full size of the above Circuit.

CO. The amplifier gain is about 20 (26 dB voltage). The VCO produces a 220-kHz carrier that is FM modulated. C3 can be changed to vary this frequency.

Leave Comment

characters left:

New Circuits



Popular Circuits

Guitar Reverb Effect
Motion sensing LED Quantum Bits
TV Transmitter Audio and video IC LM1889
12v battery level indicator circuit led
ecm mic preamplifier
free electronics circuit diagram
televition transmitter
TTL Three - State Logic Probe PCB
Wien Bridge Oscillator
Long timed circuit diagram LM307N CA3094
Attenuation feedback tone circuit
Telephone electronic lock circuit