madbeanpedals::forum

Projects => General Questions => Topic started by: drezdn on December 12, 2017, 04:52:35 PM

Title: Source for a 500kC pot with a wah gear?
Post by: drezdn on December 12, 2017, 04:52:35 PM
There's a phaser pcb I'd like to mount in a wah treadle, but I can't find a 500kC pot with a gear. Does anyone know where I can get one, or how to add the appropriate gear to a regular 16mm pot?
Title: Re: Source for a 500kC pot with a wah gear?
Post by: davent on December 12, 2017, 05:00:06 PM
There are push on wah gears for splined or 'D" 1/4" shafts. Maybe with a nice industrial strength PEC pot.

http://www.smallbear-electronics.mybigcommerce.com/racks-and-pinions-1/

dave
Title: Re: Source for a 500kC pot with a wah gear?
Post by: Govmnt_Lacky on December 12, 2017, 07:10:44 PM
Your harder task is going to be finding a 500KC pot that will "fit" in a wah shell  :-\
Title: Re: Source for a 500kC pot with a wah gear?
Post by: sjaustin on December 12, 2017, 07:20:40 PM
When I did this same thing (but with a vibe), I went with the Dunlop ECB024A Hot Potz Cry Baby Potentiometer – 470k. It's not quite 500k, but it was as close as I could get. I believe it's a log (A) taper, but you can wire it backwards.

ETA: I bought mine on Amazon.
Title: Re: Source for a 500kC pot with a wah gear?
Post by: Govmnt_Lacky on December 12, 2017, 07:40:53 PM
Quote from: sjaustin on December 12, 2017, 07:20:40 PM
When I did this same thing (but with a vibe), I went with the Dunlop ECB024A Hot Potz Cry Baby Potentiometer – 470k. It's not quite 500k, but it was as close as I could get. I believe it's a log (A) taper, but you can wire it backwards.

ETA: I bought mine on Amazon.

I'm pretty sure all of the Hot Potz II tapers are (B) Linear. Maybe you can use resistors to get the curve you need though.
Title: Re: Source for a 500kC pot with a wah gear?
Post by: sjaustin on December 12, 2017, 07:47:43 PM
Quote from: Govmnt_Lacky on December 12, 2017, 07:40:53 PMI'm pretty sure all of the Hot Potz II tapers are (B) Linear. Maybe you can use resistors to get the curve you need though.

Small Bear has them (http://www.smallbear-electronics.mybigcommerce.com/wah-pot-dunlop-hot-potz-ecb24a/) with a more detailed description, including that it is an audio taper.
Title: Re: Source for a 500kC pot with a wah gear?
Post by: Govmnt_Lacky on December 12, 2017, 08:28:55 PM
Quote from: sjaustin on December 12, 2017, 07:47:43 PM
Small Bear has them (http://www.smallbear-electronics.mybigcommerce.com/wah-pot-dunlop-hot-potz-ecb24a/) with a more detailed description, including that it is an audio taper.

Missed that one. I don't surf SB website very often though...