Wien Bridge Oscillator Rev. 1.2 HPV
author: Barbouri
2 layer board of 1.15 x 1.16 inches (29.2 x 29.5 mm)
Uploaded:
August 31, 2019
Shared:
June 20, 2020
Total Price:
$6.65
Low distortion Wien Bridge Oscillator - High Performance Version. Selected values for 400 Hz frequency output at 26 volts peak to peak. C1, C2 are precision film capacitors for low drift and distortion. IC1 is an OPA1612 ultra-low noise and distortion audio op-amp. VR4 is an external 10K potentiometer for adjusting output level. R2, R3 are for adjusting series and parallel bridge frequency circuits. R1 adjusts the negative feedback of the oscillator. L1, L2 are 14 volt incandescent bulbs used in the negative feedback circuit. Changed resistors to 1206 low noise type, capacitors changed to 1812 size to accommodate 0.22uF film. Revision 1.2
Low distortion Wien Bridge Oscillator - High Performance Version. Selected values for 400 Hz frequency output at 26 volts peak to peak. C1, C2 are precision film capacitors for low drift and distortion. IC1 is an OPA1612 ultra-low noise and distortion audio op-amp. VR4 is an external 10K potentiometer for adjusting output level. R2, R3 are for adjusting series and parallel bridge frequency circuits. R1 adjusts the negative feedback of the oscillator. L1, L2 are 14 volt incandescent bulbs used in the negative feedback circuit. Changed resistors to 1206 low noise type, capacitors changed to 1812 size to accommodate 0.22uF film. Revision 1.2
