The Amp Garage

Try reverse audio taper. Or wire your audio taper so cut is CCW.

Shepdog is correct. There should not be a connection between that part of the bridge and ground. That would present a direct short to that half of the winding.

You could do something like this, since you're using a dual opamp. The switch will let you flip the phase as desired.

[IMG613]http://i51.tinypic.com/ohmwps.jpg[/img]

For Eminence, I've used Bernie at BLTSound in the past. He provided good service and his prices were better. I've noticed however, that his prices these days are about the same as everyone else's. Free shipping though, so that helps.

Fixed bias. I guess they kind of split the difference between 6V6 and 6L6. Good solid low end, present clear highs. I'm using the JJ's as well.

I bought this Drive G65 112 solid state amp from Musicians Friend a couple years ago when they were blowing them out for $50, always intending to convert it to an ODS style tube amp. It has 7591 finals and a single tube reverb in addition to the usual non-HRM features. I modeled the tonestack in ltS...

Some choices in Strat style guitars:

Fender Eric Johnson
Tyler
Anderson
Suhr
Don Grosh
Callaham
Zion
Melancon

Well, the first caveat for anyone just starting out in building tube equipment is that there are potentially lethal voltages inside, so safety first, last, and always. Going from back to front, I would say you need at least a pair of 6L6s for the output to handle the full range and girth of the keyb...

There's a guy who plays at our church on occasion who uses a PDI-03 with his Splawn head and it sounds great. Not sure what's going on inside there, but it's the real deal.

10k will work, but you'll have most of the usable adjustment toward one end of the pot. You could solder a 10k resistor in parallel across the outer legs of the pot to bring the total resistance down to 5k, but that will mess with the taper. Doug Hoffman at www.hoffmanamps.com carries a 5k linear fu...

Try this. I marked up your drawing showing recommended changes. If it still doesn't get you what you want, you could add an anode follower to one channel to swap the phase and then take each channel to a separate PI input.

No, you'll have to lose the cap across the mix resistor to prevent the high-end rolloff. The mix resistors do load each channel so you won't get as strong a signal hitting the PI. If you want to brighten things up a bit, you can put a bright cap across the volume pot on the 6SN7 channel. You can als...

Putting a bypass cap across your mix resistor will look like a low-pass filter to your other channel. Go back to your two 220k mix resistors. You don't really need the cap at the input to the PI since you have coupling caps isolating each channel. This will let you pick an appropriate coupling cap f...

You might check with either of these folks to see if they will sell just the materials.

http://www.precisiondesignin.com
http://www.bnplasers.com/

You can build your own ground loop breaker, which will still maintain a safety ground, using the attached diagram. If you don't want to build it yourself, you can buy the Ebtech HumX ground loop breaker.