[NJARC] Replacing a tapped volume control?

[Bill Zukowski]

Dave,

All my experiences with tapped volume controls were with the tap 
providing _variable_ loudness compensation at low volume settings.  I 
had an amp with a volume control that was made of unobtanium, so I 
replaced it with a pot without the tap connection.  The result was loss 
of bass at low volume settings, acceptable for that application.  There 
really is no way, that I can think of, to eliminate the tap and maintain 
the desired fidelity at low levels.

It's possible that it is part of the AVC, but I've never seen it used in 
such a way.  Is the tap going to an RC circuit in the audio stage?  If 
so, then it definitely is for compensation and not AVC.

Hope this helps.

Bill

On 11/3/2014 08:56, David Sica wrote:
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> I may have to replace a tapped volume control. Haven't had to do that
> before. Looks like the AGC is taken from the fixed tap.  Any advice on
> substituting a standard control?  My instinct would be to bridge the pot
> with a couple of resistors.
>
> Thanks,
> -- Dave
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