How to get more "Girth" out of a V847?

[deviltone-tx]

I've done and/or tried most of the usual modifications that can be done to the circuit.  In fact the only thing that is original is the PC board and the housing.  I switched on the Metal Film Resistors to 1/4W Carbon Comps, I put in Polypropylene and WIMA caps, a Whipple Inductor, and a 100K ICAR style pot.  It also is true bypassed.  Anyway - the output of the pedal is pretty much unity, the sweep is pretty vocal yet is doesn't get muddy or glassy at the ends of the treadle sweep.  I just want it bigger sounding!!!!  It's not anemic - it's just lacking some girth.  Any ideas on how to get it?  Thanks in advance! - E

[richon]

try another "more powerfull" transistor on the output of the wah.

did you try changing the sweep of the "toothed" wheel of the pot?

[CodeMonk]

Try this URL : http://www.diyguitarist.com/StompboxStuff.htm
Near the bottom has several mods for various wah pedals.
I did the Fat Wah mod on my GCB-95 and it made a HUGE difference.

[jaysg]

Did you change any values, or just do upgrades?   The Castledine mods and BYOC options explain everything you really need.   

[deviltone-tx]

Here's a rundown. - it's true-bypassed so the input resistor is a 47K, the input cap is a .02uf Polystyrene, the bass resistor is a 390 ohm, the mid resistor is 1.8K, the "Q" is a 56K, the "range" cap is a .015uf.  I have tried moving the pot around and it changed the sweep - but not for the better.  I have plenty of vocality - it's the overall GIRTH I'm lacking.  I want it to sound BIGGER over all!!!!

[Johan]

replaiceng the original transistors in my crybaby to BC550 gave it more "balls"..if that means anything to you....I originaly replaced them to get the noise down and this was a positive sideeffect..
j

[deviltone-tx]

550's huh?  I have 108's in it now and the hFe's are in the 230-270 range....  Hmmm....

[deviltone-tx]

Just to bring this back to the top - I'm still trying to get girth out of a V847.  I tried the GCB-95 fat mod and I had no luck.  I guess I'm just used to using my old Fulltone Clyde Std for so long - I find the V847 to sound "thin".  Anyone else have some suggestions?  Thanks in advance.  - E

[Exactopposite]

i think a fasel inductor will have a fatter sound than the whipple. It has been that way in my experience. I have a couple of whipples and some fasels that i have compared. lowering the bass/gain resistor. I think the stock value is 470 ohms or maybe 510. Adjusting that to something like 330 could help also.