Username: Password:

Author Topic: Wrong cap in guitar  (Read 1743 times)


  • Junior Flyweight
  • *
  • Posts: 34
Wrong cap in guitar
« on: July 05, 2013, 09:37:23 AM »
Hey everyone! 

I have my guitar with Nailbombs set up like this:

The volume pot seems to drop the output fast when turning it down just slightly. This becomes a problem as I find playing the guitar under 100% volume pretty useless, and it is very easy to turn aswell by accident. Combined, it annoys me a lot! I don't know if the volume problem is because of the type of pot used, I used the Göldo E500P logarithmic push/pull pot for volume, and a Göldo EL500 for tone.

Anyways, after a little research yesterday I found out the value of the cap I used is completely out of whack! While I should have used a 0,022µF (22nF) cap, I accidentally got a 0,022mF (22000nF). What consequence would this have for my volume and tone pots? I'm not so strong with electronics.  I read that a resistor in there somewhere could be used to flatten out the drop aswell.

Also, is there any way to fix the pots, so it would require a little more force than an open window to turn them?   :lol:


  • Junior Flyweight
  • *
  • Posts: 26
Re: Wrong cap in guitar
« Reply #1 on: July 05, 2013, 10:05:01 AM »
If it's exactly like in the pdf, you can disconnect the capacitor leg that goes to the volume pot (thus bypassing the tone control completely) and check if you still have the problems with your volume pot. If you do, I would just replace the pot.

Now with the regards to the cap. I don't think it should affect the volume taper, but I'm not 100% positive on that. Anyways, "As the cap gets smaller, the minimum tone knob settings gets less dark." So substituting it with a 1000 times larger cap (as in 0.022µF vs 0.022mF) will make it even more dark when the tone pot is rolled off, effectively making it a "treble on/off switch". But if you always keep it all the way open and never touch it, I wouldn't worry about it too much.

Dave Sloven

  • Welterweight
  • ****
  • Posts: 4259
    • Get our album here (alnico Black Hawks)
Re: Wrong cap in guitar
« Reply #2 on: July 05, 2013, 10:08:34 AM »
Well the first thing you should do is solder in the correct cap and see how you like your guitar then.

If you really want to be able to have everything on full as a setting I would also install another push-pull or push-push with a bypass so that the signal can go straight from the pickup selector to the output jack and bypass all of your volume and tone controls, given that there seems to be room in the cavity for such pots


  • Junior Flyweight
  • *
  • Posts: 31
  • Wait, what?
Re: Wrong cap in guitar
« Reply #3 on: July 05, 2013, 04:25:12 PM »
The tone pot shouldn't have an effect on your volume taper.  If you want to be sure, disconnect your tone pot and test it out, or use the Gibson 50's wiring and wire the tone pot after the volume.

This is why I dislike pickguard cavities, working from the back is soooo much easier for wiring, no string issues.
I'm not good enough, technically, to be a classic musician. I lack discipline.