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I honestly do not remember. I got rid of the pedal a few years back, but I don't remember any feedback issues. I'm not sure if you have looked here, but the comments section at the bottom might be of some help to you.

I think that the noise floor is a known issue with this pedal. I made one a few years back, not long after it came out, and it had the same issues. I went through every trick Tom mentioned (caps, wiring, etc.) and it didn't lower the noise floor one bit. Not saying you might not be able to...

I'll have to double check, but I'm pretty sure I used the Hammond 269JX (I use Hammond on most all of my amp builds, and looking through my build notes, it looks like it was the 250-0-250 transformer). The OT was the P-T31 cheap OT.

Yep, just a single EF86. Only 4 tubes total (you could drop 2 if you went without the tremolo and used a SS rectifier).

I second an AC-4! (here is mine for reference, and the schematic I went off of)

Just checked, SBP does have them in stock. I even talked with Ross and Chris last week and saw the stock with my own eyes.

I haven't experimented with it. It sounds really good as is, and I doubt it would impact anything too much.

Here are a few of the builds that I've finished up in the last few weeks. It turned out I was on quite a phaser kick :) No matter if you like JFET, Optical or OTA phasers, I have you covered... Lumina - The Lumina is a take on the Phase 100 circuit. It is a 6-stage optical phaser. Instead...

Should be pretty simple. Link the out of the Dwarven Hammer to the In of the End All Red, and the Out of the End All to the input of the Muzzle. Now imagine that it is one big circuit. Use the In from the Dwarven Hammer as you normally would an In and the Out of the Muzzle as you would...

Its a (slightly) smaller take on this... Its a GE Tone Bender, a Phase 90, Delay, EP Booster and a RAH as the amp. Its a different mental puzzle. You have to think about where to have the points sending signal back and forth between the two boards and what makes sense to have on an upper...

Here is something that I put together this weekend. I've had the idea kicking around my head for some grab-and-go type boards for a while now. The Six-Shooter that I posted the other week was a sort of start of that. I've had a thought for a Hendrix inspired board for a while, but never went...

I was at StompboxParts the other week, just shooting the shit as I usually do when I pick up my parts, and the guys always pick on me a little bit for being crazy with my 1590A enclosures (which I agree with). They were daring me (challenging me? encouraging me?) to see what I could do with a...

I have a big stash of Russian PNP's, so I wanted to use them up. Either way, it sounds good to me, and that's the important thing...

There is a charge pump in there. It is being used as a negative voltage inverter to supply the -9V for the GE transistors. The bias is pretty stable on the Fuzz (or at least as stable as any other GE FF style pedal).

Been a long time since I've posted a few of my builds... here is what I've been up to. Hologram Mod - This is a dual BBD analog delay with modulation in a 1590A. It took a few iterations to finally get right, but I'm happy with where I landed on this. It has 600ms through 2 MN3005's, a charge...

I got my proto boards of this in, and it sounds awesome! The ghost feature is pretty cool, and I still plan to try it out with a MN3008 in the second position to give some more rhythmic delays. I did have one issue, I forgot to ground the compander! After connecting it to ground, it works...

I might be able to help you out. Let me look if I have any D's at home, I could powder one for you. If I don't, if you want to order one and ship it to me, I'll take care of it.

For reference, here is one I made up using a SI transistor (just a 2N3904) and sans the transformer. I still think it sounds pretty decent...

SMD can be a whole different beast. Its like going back to single sided layouts. No good tips here, just keep at it, the more you do it, the more and more it makes sense.