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Author Topic: Wall plate volume knob for balanced lines  (Read 421 times)

Nathan Riddle

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Wall plate volume knob for balanced lines
« on: January 29, 2019, 07:07:14 pm »

Wall plate volume knob for balanced lines.

I'm thinking I'll make my own:

Parts Express 10K Audio Taper Stereo Potentiometer 1/4" Shaft
Penn-Elcom Z408601 Basic Amplifier Knob Black - Unpainted Indicator Line

Am I missing anything?
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Erik Jerde

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Re: Wall plate volume knob for balanced lines
« Reply #1 on: January 30, 2019, 01:51:58 am »

Wall plate volume knob for balanced lines.

I'm thinking I'll make my own:

Parts Express 10K Audio Taper Stereo Potentiometer 1/4" Shaft
Penn-Elcom Z408601 Basic Amplifier Knob Black - Unpainted Indicator Line

Am I missing anything?

The plate to mount it to?  :)

Please post back about how it works out.  Iím curious to know how well matched the two sides are.  A level mismatch or other noise induced on just one line could have negative effects on the signal.  Maybe run it through a transfer function measurement to see if itís just attenuation on the wire or if other artifacts appear.
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Hal Bissinger/COMSYSTEC

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Re: Wall plate volume knob for balanced lines
« Reply #2 on: January 30, 2019, 07:43:27 pm »

For $128.00 you save yourself a lot of trouble.
https://www.rdlnet.com/downloads/datasheets/st-vca3.pdf
-Hal
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