Post by michaelcbell on Jun 11, 2007 21:48:22 GMT -5
First and foremost - welcome to guitar nuts - a happy place!
Well, you'll be glad to know the keeper of said site (1724.com) and therefore the ultrastrat mod is right here among us. I'll be surprised if wolf doesn't chime in soon, but until he does, could you describe a little more what you mean by "doesn't work"
Post by UnklMickey on Jun 11, 2007 22:04:18 GMT -5
Welcome to GuitarNuts2. In case you weren't aware, the author of that diagram (Wolf) is a member here!
From the symptoms you've described, it seems as if there is a short to ground at the ccw lug of the tone pot. (the lug the capacitor is connected to.) It's possible, but not likely that the cap is defective, and shorted. I assume you just reused the original tone cap, so there is no chance you accidentally have the wrong value cap. A more likely possibility is that there is a solder blob shorting that lug to ground, or the leads of the cap are touching together.
Get a multimeter ($3 ~ $5) and check the resistance to ground at that lug. You should read the value of the tone pot (250k ohms?), when the tone pot is at 10, but I suspect you will read just a few ohms.
The change you made, connecting the tone cut circuit before the volume control is good. I prefer to do all my tone cuts that way, so the volume setting has less effect on the tone cut.
You can even check externally before you take the guitar apart. Plug a cable into the output jack with the volume and tone at 10. Put all the pickups in series, and you should read about 15k ohms at the end of the cable (between the tip and sleeve). A correctly working tone control will have no effect on this as it is reduced to 0. In your case, I suspect it will decrease dramatically.
EDIT: sorry Michaelcbell, I was busy typing while you were posting, so I didn't see you already covered some of this.
Last Edit: Jun 11, 2007 22:07:59 GMT -5 by UnklMickey
"Silence is golden, but duct tape is silver. " -- Steve Hopton
"some people say happiness is just a State of mind...................... i think it should be a whole freakin' Country!" -- unklmickey