Audio Oscillator

Posted on Jun 10, 2012

Two gates, U1A and U1B O/3 of a 4049 hex inveter), are connected in a VFO circuit. Components Rl, R3, and CI set the frequ

Audio Oscillator
Click here to download the full size of the above Circuit.

ency range of the VFO. With the values given, the circuit"s output can range from a few hundred hertz to over several thousand hertz by adjusting R3. The simplest way to change the frequency range of the oscillator is to use different capacitance values for CI. A rotary switch, teamed up with a number of capacitors, can be used to select the desired frequency range.

Leave Comment

characters left:

New Circuits



Popular Circuits

Amplifier Thermal Protection
Phone line audio muting circuit
antenna tuning unit atu for 27 mhz cb
rain / water alarm circuit diagram
Linear SuperCap Charger with Current-Limited Ideal Diode and V/I Monitor
triggering circuit
Audio mV Meter
Simple Ring Modulator
One of the positive and negative brake circuit to operate energy