After all this time...

[RDV]

...I finally figured out what was wrong with my wah-wah(which was the first circuit I built). I had used those Radio Shack 2N3904 trannies which I suspect are just re-labeled garbage. I replaced Q1 a while back hoping it would help...it didn't...much. It just was weak and woozy sounding even with a red Fasel. Last night I finally put a real 2N3904 in Q2 and YOWZA!! No wonder I thought it sucked before. It did!! It now sounds like a real wah(I used R.G.'s Vox circuit).

I wonder what else I've looked over and missed?

I wish I could do the same for my DoubleD. I gave up on the hum problem and took it out of the enclosure last night and put my Thundercheif in one side, and a Distortion+/Liquid Drive in the other side. I really dig that.

RDV out.

[Arn C.]

Thats great!  Always nice when you can get one of those pedals you toss aside and forget about finally working!  I still have a box of them!

I have a question on the liquid drive for you.  Did you use the burr-brown opa2134pa IC? 
Is there a comparable substitute for this IC?

Thanks man!
Arn C.

[RDV]

I have a question on the liquid drive for you.  Did you use the burr-brown opa2134pa IC? 
Is there a comparable substitute for this IC?

I used the single channel version, the OPA134. Any opamp will work in the circuit. I know it's very fashionable these days to use Burr-Browns but I think that where they really make a big difference is in sophisticated aerospace circuits and not in guitar effects pedals. I think it even sounds good with a 741 but a NE5532 or 5534 would probably be less hissy. I'm so deaf these days I can hardly even hear hiss.

HTH

RDV

[Arn C.]

Thanks a bunch! 

"I'm so deaf these days I can hardly even hear hiss."

Lost your hair, can't hear, .....   

This is startin' to sound like a good country tune in the makins'

Peace!
Arn C.

[RDV]

Hair, I got. Hearing, not so much.

RDV

[MartyMart]

That's cool, I recently went back to a BMTB which was my second ever build on perf.
It had never worked, I found out why .... a floating un-connected ground !!
It just "looked" soldered and never was 
Sounds great BTW !
Peace,
Marty.

[RDV]

When I first put together the circuit, I used 100% Radio Shack parts as I had not ordered from Smallbear as yet. This included the crappy little RS transformer(which now resides in a little Tim E. 1-transistor amp). It worked but was pretty unimpressive. Slowly but surely I started replacing the bad stuff with good stuff. 1st: a salvaged crybaby inductor(now in the MRB in my practice amp), 2nd: replacing Q1 with a 2N5088(still there), 3rd: getting a red Fasel(still there), 4th: giving it a 3PDT w/ an LED. Still sucked. Wouldn't cut through any distortion at all(even a little preamp dist). Little did I know that the Q2 didn't even cut it as an emitter follower(must've been below 200hfe).

Thanks again to R.G. Keen, who's site I read from top to bottom before I started any of this.

RDV