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Re: OT linear and log pots
In a message dated 16/01/00 21:43:33 GMT Standard Time,
kflint@annihilist.com
writes:
> If that was sold as a volume pedal, it almost certainly came with a log
>pot
> inside. Get an ohm meter and check it, you'll see! That log pot is what
> gives you the linear volume change you like.
>
> hope this helps,
>
> kim
I've found reality to actually be a bit different.
(although Kim's detailed analysis is excellent imho)
The impedance of the devices which are connected to the pot also
effect the response . If this impedance isn't relatively large
compared to that of the pot then a lin pot will give something tending
somewhat towards a log response, and a log pot will respond so
that 'not much happens till you get to 9'.
By using a pot of the right impedance you can get the response you want.
(But I don't think you'll be able to get the special pots they use in
footpedals nowadays , which have a reduced turning angle)
So sometimes a lin pot would work better in a swell pedal.( There seems
to be evidence that the Boss FV-50L is linear).
Andy Butler