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Pots


Curtis P

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Pots are rated by their resistance, and that's a key to understanding the way they react.

Some people don't realize that pots actually "throw away" energy, sending the excess to the ground as you decrease the "volume"... and the high frequencies are the most susceptable to being drained off.

Team that up with the higher resistance of the 250k pot, which will shun the higher frequencies first, and you have a greater loss of highs... making it less "bright" than a 500k pot.

If you want your guitar to be brighter, you could step up to 1,000k pots.

BTW: That's just a layman's overview.

D~s

Edited by Dugz Ink
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For guitar uses there are 2 kinds, linear and logarithmic potentiometers. Logarithmic pot for tone (I think) which increases by a factor of 10 ie. 1 to 10 to 100 to 1000 etc. Volume pots are linear increasing by a factor of 1, ie. 1,2,3,4 etc. How can you tell the difference? not by just looking at them. :D Turn the knob to the middle of its sweep and then touch an ohmmeter lead (lets say the red one) to the center terminal and the other lead (black) to a side terminal. Then touch the other side terminal with the black lead. If the resistance readings are equal then the pot is linear type, if they are not equal then its logarithmic.

If you are really into interesting reading:

http://www.lespaulforum.com/pots/lpfpots.html

Edited by Southpa
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so since i have 2 volume pots, i cant use the one for a tone? Is that what your saying Southpa?

Like Lovecraft mentioned, either one will work. It depends on what kind of "sweep" you want in your volume and tone. The log type pots increase ten-fold, the effect being a very fast rise as you turn the knob. If you are very specific to dialing in your guitar tone then I would use the linear type, you have more control. Personally, it wouldn't matter to me as I always play with vol. and tones cranked all the way up anyway. In this case the end result is still the same regardless of what type of pot I use. :D

Edited by Southpa
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Thanks Southpa

I was completly blank this morning when i read it, it was almost time for the bus to arrive and i was just skimmin through it and i thought you said you couldnt

My appoligies

Thanks for the info everyone!!

Curtis

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Sorry for the hi-jack, but I was wondering what brand of pots everyone prefers. I use the standard CTS from alprts, but mechanically they aren't very smooth. Dimarzio is nice. Any other recommendations, suppliers for 250 and 500k pots?

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