Wien bridge oscillator II

Posted on May 25, 2012

Wien bridge sine-wave oscillator using two RCA CA3140 op amps cover» 30 Hz to 100 kHz with less than 0 percent total harmonic distortion. The 10k pot is adjusted for the best waveform

Wien bridge oscillator II
Click here to download the full size of the above Circuit.

Capacitor CI and C2 are a two-gang, 450-pF variable with its frame isolated from ground. Maximum output into a 600-ohm load is about 1 volt rms.

Leave Comment

characters left:

New Circuits



Popular Circuits

60W audio amplifier (2N3055)
Radio Glen TBU
Plug-in speed control for tools or appliances
Atari punk console + Baby sequencer 4017 IC
propeller receiver
dm projects
amplifier audio small to use with 9v battery operated
Definition of a Hartley oscillator
ISL62386 High-Efficiency Quad Output System Power Supply Controller for Notebook Computers
A relay control circuit