Help with reading schematic

[El Fug]

I picked up a somewhat modded 1985 S-500, and I'm trying to make sure the capacitor values are correct. The treble and bass caps are correct; however, I can't make out what the value on the volume cap should be in this schematic:

http://www.glguitars.com/schematics/S-5 ... rawing.pdf

My guitar has a cap on the volume that reads: 101 1kv.

Is this correct? Looks like the cap in that schematic starts with a 2 and then a 0 and then I can't make it out.

[NickHorne]

Your "101 and 1kv" looks like it's 100pF, (and a generous working voltage rating, of 1,000 volts!)
Try this for reference:
http://www.elecraft.com/Apps/caps.htm

The schematic is really hard to read; I can't make it out either!
But volume caps are personal, it depends on what you're after and how you use your amp / guitar volumes. Very much a matter of experimenting, with a couple of little wires poking out from under your pickguard, to twist-fit trial caps to, if need be, until you're happy.

[El Fug]

Your "101 and 1kv" looks like it's 100pF, (and a generous working voltage rating, of 1,000 volts!)
Try this for reference:
http://www.elecraft.com/Apps/caps.htm

The schematic is really hard to read; I can't make it out either!
But volume caps are personal, it depends on what you're after and how you use your amp / guitar volumes. Very much a matter of experimenting, with a couple of little wires poking out from under your pickguard, to twist-fit trial caps to, if need be, until you're happy.

Thanks, Nick. I'm not much of a tinkerer. As such, I just want to make sure that the cap is the correct one that Leo used in his design.

[NickHorne]

Sorry! Not very helpful of me.
Why not try a few other schematics of G&Ls? The cap on the volume pot is really to do with cable capacitance, rather than pickup characteristics, and probably won't change from one model to another. 100pF seems a little small to me, but might be right (I have to say I don't know what G&L's normally do).

[louis cyfer]

Sorry! Not very helpful of me.
Why not try a few other schematics of G&Ls? The cap on the volume pot is really to do with cable capacitance, rather than pickup characteristics, and probably won't change from one model to another. 100pF seems a little small to me, but might be right (I have to say I don't know what G&L's normally do).

that's a treble bleed, and i prefer the fezz parka mod, take the cap off the volume pot and switch the tone pot over to the output of the volume pot from the input. works much better.

[Elwood]

I'm going to have explore now and see which guitars I have
are wired with the tone pot tap after or before the Volume.

Thanks again Louis for the heads up.

here's a link I found for reference:
http://www.singlecoil.com/docs/tele-tone2.pdf

[El Fug]

Sorry! Not very helpful of me.
Why not try a few other schematics of G&Ls? The cap on the volume pot is really to do with cable capacitance, rather than pickup characteristics, and probably won't change from one model to another. 100pF seems a little small to me, but might be right (I have to say I don't know what G&L's normally do).

that's a treble bleed, and i prefer the fezz parka mod, take the cap off the volume pot and switch the tone pot over to the output of the volume pot from the input. works much better.

Not sure that's doable on an S-500 with the PTB system.

Regardless, I like the treble bleed (never could stand what backing off on the volume did to my old Tele) and I really want to know if the current cap I have in my guitar is the correct one. Anybody?

[NickHorne]

Try this:
http://www.glguitars.com/schematics/S-5 ... iagram.pdf
This shows a 200pF cap for the treble bleed, instead of your 100pF.
So it looks like someone may have changed yours to keep just the highest shiny bits when the volume is backed off.

[Miles Smiles]

This is the circuit of a 1985 S-500 and the "101 1kv" is the original one, the picture might be useful for the rest of the circuit too (click on it!):

[NickHorne]

Nice one!
There's your authoritative answer.
Looks like I put up a misleading link there - sorry!!

[El Fug]

This is the circuit of a 1985 S-500 and the "101 1kv" is the original one, the picture might be useful for the rest of the circuit too (click on it!):

Thank you, Miles! Mine is exactly right then (looks identical to yours). Good! A few things have been modded on this guitar and I'm trying to figure out what's original and what's not. Thanks everybody for chiming in. I really appreciate it!