Audio Circuits - Level, Tone & Balance Controls


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Audio Circuits: Level, Tone and Balance Circuits Page 2
Level Tone Balance: #-G H-S T-Z
Last Updated on: Friday, August 29, 2008 02:32 PM

Audio Circuits -- Main Page

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Improved Pl Tone Decoder: (electronic circuit added 7/03)

Mic Pre Pan Pot Circuit: (circuit added 7/02)

Mono Audio Equalizer : (electronic Circuit diagram added 03/03)

Musical Instrument (Expandable) Graphic Equalizer: standard equalizer plus bonus distortion unit (added 4/02)

Passive Filters Fill the Bill at Audio Frequencies: 02/01/01 EDN-Design Ideas / (added 05/03)

PC Speaker Volume Control Circuit #2: (electronic circuit added 8/02)

PC Speaker Volume Control Circuit: (circuit / schematic design added 6/06)

Pitch Shifter: (circuit added 10/06)

Self-Tune Filter: "QRP" receivers and transmitters, for HF CW are often based upon VFO tuning which can be a problem, especially when using the higher frequency bands. I have found that frequency drift is quite annoying at the best of times, but back in 1972 I found this little circuit. It is a narrow band-pass filter, based upon the LM201 OP-Amp. The circuit should work using other OP-Amps, but I have not tested this; I only used the LM201.... (electronic circuit added 4/05)

Simple Easy Parametric and Graphic Eq's Plus Peaks and Notches: (electronic circuit added 8/02)

Soft Switching Amplifier with Tone Controls: (schematic / circuit design added 9/02)

Stereo Tremolo: (electronic circuit added 10/06)

Stereo Width Controller: (electronic circuit added 10/06)

Stereo Width Controllers: (schematic / circuit design added 9/02)

Subwoofer Equalizer: The Linkwitz transform circuit is a hugely flexible way to equalize the bottom end of a sealed loudspeaker enclosure. A speaker that is corrected using this method is flat from below resonance to the upper limit of the selected driver. The low frequency ... (added 7/03)

Level Tone Balance: #-G H-S T-Z