switch for Zakk Wylde MXR

Started by valvehead, April 21, 2012, 06:14:46 AM

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valvehead

Hi guys----great forum  !!      :)

I have a question for my first post .

Im in the middle of building a MXR  ZAkk Wylde  overdrive pedal.

I have a pedal switch  from a previous project I want to use .  I "think" its a dpdt .  It has 6 terminals .

Just wondering which exact terminals go where  ----  Is there any way one of you could make a quick drawing in MS paint  --or a sketch  of the switch wiring ?  Hard to tell terminals looking at the schematic .

I assume a lot of you have the scem for this pedal ...if not I can post it  ?

Thanks fellas  !!

Keeb

#1
http://4.bp.blogspot.com/-bGITSdyZOXk/TZm5QatV9gI/AAAAAAAAAV8/XdPT5jyQ7Sg/s1600/dpdtsw.png
Here's how a dpdt switch works (the left part of the image). The center lugs (or "poles") connect either up or down. Since there is two poles and two directions (up or down) this makes it a Dual Pole Dual Throw, or dpdt.
If you want to make sure you have a dpdt you could measure it.
Connect the center lug to a lug above or under with your DMM and set it to continuity or resistance. Your DMM will, in one of these positions, beep for continuity mode or read as near zero ohms in resistance mode. Now press/flick the switch and the other lug will be connected to the center pole. Repeat for other side of switch.

Here's a good read on switching: http://www.geofex.com/Article_Folders/bypass/bypass.htm.

Basically you want to do one of these:
The difference is that the "alternate wiring method" ground the effect when the effect is bypassed. Both are true bypass.



Edit; Forgot to say that the schem is from AMZ Fx http://www.muzique.com/.
You know, credit where credit is due.

valvehead

PERFECT  !!!!

Thanks --thats what I needed     ;D     :icon_mrgreen:

Cheers mate  !!!!!!