Multi-Face Trim Pot Question

Started by mr.adambeck, April 06, 2009, 03:43:26 PM

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mr.adambeck

Hey I was sitting around the house yesterday, feeling the effects of the bad economy, and realized that I have all the parts at home to build a multi-face, except for the trim-pot.  I was wondering, is it possible to wire a regular pot, with a resistor on one side, and a ground on the other, and use that as a trim pot instead?  OR if I just use a resistor of the same value, would it really be that bad?
Otherwise I'm going to have to wait forever to order a trim-pot (yeah, I'm pretty impatient....)

Sorry if this has an obvious answer, I'm a noob with only a few stompboxes under my belt!

petemoore

  Those two, variable, reverse synchronized resistors [1 wafer has a wiper that rotates around when turned toward the 'left' the right side resistance rises, and the left side resistance decreases...depending on where the wiper touches on the 1 fixed resistor [the resistive pot wafer, it's ends are connected to the outside lugs, 1 and 3.
  As long as the pot is the right value [total resistance = the wafer value], it will provide resistances between connection and whatever the R value of the pot measures.
  The correct taper pot will make the adjustment more evenly spaced across the range of rotation the potshaft has.
  See Geo. See GEO: The secret life of Pots.
Convention creates following, following creates convention.

mr.adambeck

I'm sorry, I'm such a noob that your response almost seems like it's written in a secret code!  :icon_redface: Any chance you could dumb that down for me?  It seems like you're saying I could use a regular potentiometer instead of a trimpot as long at it's the right value, is that correct?

petemoore

Convention creates following, following creates convention.