Ken Stone active real ring modulator schematic

[analogoutput]

Merely repeating myself

#2000 Megadrone

Try replacing the leftmost resistor with a 1M pot. Added: To be a little less terse, the first part of this circuit has the inputs going through 100k resistors to the inverting input of an op amp. The non inverting input is connected to ground and the output feeds back to the inverting input through another 100k resistor: [image] This is an inverting amplifier whose gain is the ratio of the feedback resistor to the input resistors: 100k/100k = 1. Increasing the feedback resistor would increa…