Re: Volume control for stereo signal?


MRW wrote:
Hello all,

Let's say I have two mono sources that will be outputted as a stereo
signal to a headphone. If the mono sources pass thru two simple opamp
configured as inverting amplifiers, how do I control the amplitude
level of both mono sources simultaneoulsy? Is there a potentiometer
that has multiple variable resistors that can be controlled by one
knob?

Thanks!

dual ganged logarithmic potentiometers are made for just this purpose.
Surprising you haven't heard of them.

Radio Shack do a 100k one for $3.99 if you are in the USA

.

Relevant Pages

  • Volume control for stereo signal?
    ... Let's say I have two mono sources that will be outputted as a stereo ... signal to a headphone. ... If the mono sources pass thru two simple opamp ... how do I control the amplitude ...
    (sci.electronics.basics)
  • Re: Volume control for stereo signal?
    ... Let's say I have two mono sources that will be outputted as a stereo ... signal to a headphone. ... If the mono sources pass thru two simple opamp ... how do I control the amplitude ...
    (sci.electronics.basics)
  • Re: Volume control for stereo signal?
    ... Let's say I have two mono sources that will be outputted as a stereo ... how do I control the amplitude ... dual ganged logarithmic potentiometers are made for just this purpose. ... Radio Shack do a 100k one for $3.99 if you are in the USA ...
    (sci.electronics.basics)
  • Re: Volume control for stereo signal?
    ... Let's say I have two mono sources that will be outputted as a stereo ... how do I control the amplitude ... You need a 'stereo' or twin gang pot. ... audio taper to give it a sensible change of volume with rotation. ...
    (sci.electronics.basics)
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