can i replace a stereo pot with a 1 gang pot

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Y

yilingcheng

Member
Joined 2015
#1
on this volume board:

Balanced in/out 256 steps volume control board passive pre-amplifier stereo

s-l1600.jpg


the pot need to be linear, i'm using a an alp stereo log pot and it trip the relays easily

i'm having a hard time to find a 2 gang pot linear that fit size wize like an alp pot?

(i do not need to balanced my signal)

thanks

Martin
 
#9
finally the manufacturer answer me....

Hi Martin,

Yes you can use a high quality single gang with value 20K - 30K and linear scale.

Best regards,
Stanton
JIMS AUDIO
Reply

Your previous message
thanks

can i use a precision pot with one gang only (solder the two circuit together)?

Martin
 
#10
As far as I understand relay-attenuators (I am using something similar from ELMA for the first time...), you can use whatever potentiometer that triggers the relay-control. The elma controls both channels at once (thus, a single-deck pot is good enough—for the ELMA. Are you sure you can control left/right independently?)
If a linear pot is required/recommended, the logarhithmic function is (most probably) embedded in the resistor-chain. Controlling the unit with a logarithmic pot results in "doubling" or adding up the logarithmic' steps… (volume-control becomes awkward).

Multiturn pot, precision pots don't make much sense, because these are in fact a variation of stepped attenuator with a finite number of positions. (a pot's position of say, 0.7111 would be the same as 0.7001 or just 0.7)

Same with a multiturn— plus you haven't visual feedback of the pot‘s position, unless you connect a display of sorts (digital display or those nifty, analog multiturn potentiometer with gears which name I have forgotten... something like that)
 
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