Putting a Pot in series with a resistor in commercial PCB?

Started by bazzwazzle, September 07, 2004, 12:56:29 PM

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bazzwazzle

Quote from: petemooreMe neither...er at least I think were talking about the same mod...
 External pot changes Q or something
 I found out 'this' mod makes no difference if the inductor is not a 500mh or so...I left the mod as is, because it made no difference, and someday plan to try out an 'improved' inductor.

after looking at van hansen's link... it says that the GCB-95's have 500mH inductors.. so would it not work well?

vanhansen

Ok, here's 2 pictures of the board from my GCB95 - one from the component side and one from the trace side (sorry for the blurriness).  Any help on doing the true-bypass mod and voice od would be great.  If all I need to do is change the 33K resistor behind the input jack to 68K, that's easy enough.  How about the true-bypass? My board doesn't have some of the holes that are on the site a few posts up (from the input buffer).



Erik

bazzwazzle

i'm not so sure but you could try emailing Andrea he's nice and he's the one who maintains that page. He might be able to help you. His email is on the bottom of the page. ;)

Fret Wire

This will cover most all wahs. There is specific true bypass wiring schem's for Dunlop's rev. E, F, & G.

Read this, and Geo's Technology of the Wah, and mod away!

http://homepage.ntlworld.com/s.castledine/greenfuz/wah.html

http://www.geofex.com/Article_Folders/wahpedl/wahped.htm

One of the first things you should do with a wah is make sure the pot is indexed right, or to your preference.
http://www.happybob.com/marc/pot_adjustment_procedure.htm
Fret Wire
(Keyser Soze)


vanhansen

Thanks.  I emailed Andreas and he helped me out.  I think I'll be able to get it working the way I want.  Those links help too.  Good info.
Erik