Micro-vibe trim-pot adjustment??? HELP!!!

Started by pjackso, January 10, 2004, 07:45:22 AM

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pjackso

I am brand new to this forum and I am interested in finding out how to adjust the trim-pot(s) in my Micro-vibe (by Voodoo lab).  I am going for a Charlie Hunter-ish, fairly clean leslie tone and I heard that the trim-pot adjustment is key.
Any pointers?
Thank you.

smoguzbenjamin

Welcome to the forum! :D

Use a non-conducting screwdriver to turn the pot and let your ears be the judge ;) Just remember where the trimmer was in the first place, just in case you wanna go back to the factory settings :)
I don't like Holland. Nobody has the transistors I want.

pjackso

Thank you smoguzbenjamin for the info.  However I don't really know what a trim-pot is or where to find it???  I assume I have to open up the pedal's casing to get to it.  I have never modified a pedal before.
And by a "non-conducting screwdriver"  do you mean a stainless steel one?
Thank again! :D

smoguzbenjamin

Call me Ben :) A trimpot is a small potentiometer, meant for setting once. After that you never need to adjust it. They're handy for biasing transistors and the likes, but you'll learn all that later on.

The trimmer is on the circuit board, so yes you'll have to open the box up. Then locate small sqaure or round objects that can be adjusted. Here's a few examples of what a trimmer can look like:




Something that looks like that. Could you maybe open up your pedal, and take a picture of the circuit board? Then you could post it up here and I could show you where the trimmers are ;)

A non-conducting screwdriver is a screwdriver that will not conduct electricity. I use carbon screwdrivers myself. A while back I used steel screwdrivers, and I found that while the screwdriver was inserted in the trimmer the sound was great, and when I took it out it sucked again, or the other way round. ;) A guitar pick might work also.
I don't like Holland. Nobody has the transistors I want.