Archive of the former Yahoo!Groups mailing list: MOTM
Subject: [motm] dual-ganged log pots?
From: Scott K Warren <scott@...>
Date: 2006-01-12
Does anyone have a recommendation for sourcing dual log pots of MOTM
quality for use as audio input attenuators? I searched the archives and
this was addressed, but several years ago and without a "final answer".
I know Bourns lists dual-ganged audio taper in the MOTM flavor (91A2)
but I've only been able to find them up to 10K ohms (at Newark). I'm
just a software guy but good practice seems to be to use 25K - 100K ohm
pots for audio inputs.
I got a couple of the Bourns 10K duals anyway. Can I use them directly
at the input to an amplifier for line-level stereo signals, or do I
need to put some kind of buffers in front of them for higher input
impedance? Or use cheaper pots in a more appropriate value? (These are
for external inputs to my synth, so the output from any random piece of
audio equipment might be plugged into them.)
Thanks,
skw