2k pot help

[Al Heeley]

I'm building a bass fuzz which calls for a 2k pot but I can't find one anywhere at the normal online uk outlets. Can anyone help or advise if I can covert a 1k into a 2k for example?

[Hanglow]

try a 5k lin and if it's not to your liking then stick a 4k or thereabouts resistor across the lugs to get closer to 2k

[petemoore]

Can anyone help or advise if I can covert a 1k into a 2k for example?
  As Hanglow suggested, if you put a resistor across a pot, you can measure the max value with the DMM, the outside lugs of a 5k pot will measure about like a 4k7 fixed resistor, grab a 4k7 and put resistors parallel until you find one that makes the pair of resistive elements = what you want.
  Without knowing where/what the pot is doing, also you might like 1K - 2k adjustment range better than 0-2k, which a series 1k>1kpot will do.
  Tapers will vary.

[Al Heeley]

I've found a spare 1k pot, might try it with a 500R resistor in series with it so I at least get a 0.5k to 1.5k range as a compromise.

[kupervaser]

Keep in mind that, for example for a gain pot, the maximum gain will be when the resistance is 0. So if you put a potmeter in series with another resistor you will never be able to get it at maxmimum gain.
It is not a problem at all to use a bigger pot.

Here is a nice website for you:
http://www.diystompboxes.com/analogalchemy/emh/emh.html

[BAARON]

...So if you put a potmeter in series with another resistor you will never be able to get it at maxmimum gain.

Not necessarily.  In a Fuzz Face, for example, the pot's value doesn't change: instead, it moves the bypass cap around on the pot's track.  The bypass cap (22ųF) on the middle lug of the pot maxes out the gain when it travels to the top of the pot (i.e., connects to the bottom of Q2), essentially changing the impedance to zero, yes... but this means that instead of being unable to max out the gain with a 1k+1k pot (where the 1k connects to ground and the pot connects to Q2), it means you can't turn the gain down to zero instead.

[Al Heeley]

Useful link and advice - thanks! I think I have a 4k7 pot around somewhere too so adding 2 x 1.74k res in parallel would effectively give me a 2k pot travel.
Can't post much more info due to what I believe is sensitive furry pachyderm content here which can lead to a curious flurry of activity.

[Gus]

http://www.diystompboxes.com/pedals/gusFuzzFace.gif

Look at the bias pot it adds to the gain pot value but is bypassed at AC via the cap at min setting. 

A link to the schematic would help with an answer.

[petemoore]

  He's building off of a public schematic that is 'private' I think.

[slacker]

The 4k7 you've got will work fine, in that circuit. Maximum gain is when the pot is on zero resistance so having a slightly larger pot just means the minimum gain, which you probably won't use anyway might be a bit less. The usable range might be bunched up at the end of the pot a bit more as well, but it will probably be fine.

Seen as how he can't post the schematic the gain pot is the same arrangement as in the Colorsound Overdriver.
http://www.aronnelson.com/gallery/main.php/v/slackers-stuff/album170/CSOVR.JPG.html