Tone control circuit diagrams
Amp with Tone Controls & Soft Switching
Built around an LM380, this amplifier includes tone controls and electronic "soft switching". The soft switching circuitry ensures power is built up gradually eliminating the dc thump. Read more...Loudness Control
When listening to music at low volume levels, bass and treble frequencies are attenuated more than mid frequencies. This loudness control alters the frequency response curve to correspond roughly with the equal loudness characteristic of the ear. The circuit shown, is for a single channel, so for a stereo system, two such units should be built. This circuit has a boost of 13dB at 20Hz and approximately 9dB at 20kHz. Read more...3 Band Equalizer
A tone control circuit made with a single op-amp and having three ranges, bass, middle and treble controls. Read more...Tremolo Effect Generator
Stand-alone, 9V battery powered unit. High overload margin, low distortion circuit Read more...Guitar Preamp with Tone Controls
An electric guitar pre-amp with tone controls using dual supplies. The guitar pickup is high impedance, therefore good quality screened cable must be used between guitar pickup and the preamp. Read more...Tone Control
Based on the classic Baxendall tone control circuit, this provides a maximum cut and boost of around 6dB at 10K and 50Hz. Read more...
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