fake wah with modded tone control. video

[joegagan]

mark hammer talked about tone control type wah effects. i modded my cts 250k pot in my tele so that it has a radical taper, you get the whole sweep in the first 1/4 rotation. also, the trace is sanded off on the cw side so it is a zero-load tone control when turned all the way up.

video:
http://www.youtube.com/watch?v=DvPVlV1JfZk

[jmdfd415]

thats pretty damn cool!

[Mark Hammer]

Yep, that's it.   Nice.

What, pray tell, sits between the volume and tone controls?  Or is it simply the reflection of something on the chrome plate?

[GREEN FUZ]

Nice one.

[joegagan]

oh hi mark!

that is the famous treble bleed cap control that we discussed about 5 weeks ago. 500k pot series'd w/.001 silver mica cap across volume pot lugs. total control of treble bleed, can't rave enough about how much i use it and how nice it is.

[snoof]

Nice!  Thats the same thing I was trying to describe in the Cat Stevens thread.  Roy Buchanan, Danny Gatton type o thing.

[joegagan]

one more note ,lifted from the other thread:

i sanded the trace to get all the action in the first 25% of rotation. coupled with the lefty effect, i can roll the tone up in the same direction of downpicking (righties have to twist the knob opposite the pickstroke for same effect).

[vanessa]

Good stuff Joe, that's what you were talking about (bleed cap) in that "Messing with the Q" thread? I wound up getting P90's for some( ) twang and boy do they twang. I just did not like that humbucker in the bridge. I've got it where I can swap pickups in and out
via connector so I'm going back to mess with circuit design in a bit. I'll let you know how it works out.

Nice!  Thats the same thing I was trying to describe in the Cat Stevens thread.  Roy Buchanan, Danny Gatton type o thing.

It goes back way before Roy and Danny. They got the idea from those old lap steel players of the 40's and 50's. Western Swing versions of Purple Haze! 

[joegagan]

i love p90s. especially for a warm interesting clean tone. so good.

yes this is the circuit for treble bleed that was in the 'messin w the Q" thread. people are probably getting sick of me sqwauking about that mod  ha

[frankclarke]

I'm impressed!

[tcobretti]

Joe, I hadn't realized you were a pro.  Do you play on American Idol or something?  You certainly play the hell out of the guitar.

[joegagan]

hey thanks guys

i used to be 3rd string fill in for mike fuller's studio gigs in LA

*just kidding mike, don't have to send me another email please*

back to serious
i did about a thousand live shows with my brother tim ( now goes by 'tiger' in nashville) between 95 and '03, so would have hoped i had learned how to jam by then!
we have a lot of great players in this forum, keeps me humble.

[petemoore]

  One humdinger of a tone knob you got there Joe !
  Yupp...you did it this time ! Passive Wah in guitar.
  who'dda thunk it possible.
  If that's just a cap to pot to ground, why not just go with a 1 meg linear [2meg if you can find one], it should get 250k sweep in a 1/4 turn ?

[joegagan]

yah, petemoore, i did a lot of experiments with pots a few years ago. your theory is correct, a 1 meg worked pretty well if i recall correctly.
also, without modding it is practically as low load as most people would need for the cw position.

[gez]

joe 'tone-hound' gagan.  Nice! 

[Paul Marossy]

That's a cool sound.