Reverse audio 25k pots?

Started by space_ryerson, December 05, 2008, 03:26:32 PM

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space_ryerson

I'm a lefty, and use the volume control on my guitars a lot while playing. On all of my guitars, except one, I've managed to get reverse audio/lefty pots from either Effects Connection, Fender or Small Bear. The one exception is a guitar that has EMG humbuckers in it, which requires 25K pots. I tried using tapering resistors on linear pots, as specified in R.G.'s 'The Secret Life of Pots'. This worked for getting a good taper, but the tone got a bit on the shrill/tinny side when I rolled down the volume knob. I don't know what is going on in EMG's active circuit, but I presume the shrill sound is due to increased load.

Does anyone know where I can get some 25k reverse audio pots? Currently I'm living with 25K linear pots, but I'd like to find 25K reverse audio pots. I'm also thinking of trying Small Bear's reverse 50K pots, to see if that works better. By the way, I have a lefty japanese strat from the late 80's, and the 250k pots in it have a fantastic taper; the best reverse audio pots I've used!

ianmgull

I'm pretty sure reverse audio is the same thing as reverse log?? It just refers to the taper. You should be able to just swap the two outer lugs if you want to turn it the other way?

armstrom

Just reversing the lugs won't do the trick. Reverse Audio/Log taper is different. If you reverse the lugs then you will see maximum resistance (25K) between the wiper and lug 3 when the pot is "all the way down" (turned fully in the counter-clockwise direction). If it were that simple no one would sell reverse log pots :)
Take a look at figure 4 on this page: http://sound.westhost.com/pots.htm ("Antilog" is the same as reverse log.)