I was under the impression that I could measure a variable resistance thru the RCA input in my preamplifier with a meter as the attenuator was rotated. The attenuator is connected to this input.
Well, it turned out the resistance was the same irrespective of the control rotation.
I was expecting to have a zero to 50K reading, so how is the signal attenuated then? Or, am I doing something wrong.
Thanks
Well, it turned out the resistance was the same irrespective of the control rotation.
I was expecting to have a zero to 50K reading, so how is the signal attenuated then? Or, am I doing something wrong.
Thanks
you are doing something wrong 
Without doing a drawing, imagine the RCA input going to the TOP end of the potentiometer - so one will measure 50K (or whatever) to ground.
The WIPER then goes on into the amplifier. allowing a proportion of the signal from 100% to 0% to pass through, without affecting (loading) the source.
Without doing a drawing, imagine the RCA input going to the TOP end of the potentiometer - so one will measure 50K (or whatever) to ground.
The WIPER then goes on into the amplifier. allowing a proportion of the signal from 100% to 0% to pass through, without affecting (loading) the source.
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