I have seen alot of ways to do 3PDT wiring. Does anyone way have an advantage?

Started by PurpleStrat, May 21, 2008, 09:32:11 PM

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PurpleStrat


kurtlives

Dano is grounding the input when bypassed. Good for reducing noise in high gain pedals.
My DIY site:
www.pdfelectronics.com

PurpleStrat

So that way would be good for Big Muff's, Boss Tones ect? Would it be good to use this in making bypass loops?

Processaurus

Absolutely.  My bypass loop that doesn't ground the input squeals like a pig if there is a high gain effect in the loop.

darron

don't forget my way (:

http://www.dazatronyx.com/support/true-bypass-technique.pdf

grounds the input when in bypass too, but it also makes it so that when you bypass the signal the audio only has to go through one switch, giving twice as good continuity :P

plus it looks simple i guess. i have never seen anyone else do this, but analog mike said that he did (which i thought was cool as): http://www.diystompboxes.com/smfforum/index.php?topic=56137

Blood, Sweat & Flux. Pedals made with lasers and real wires!

flo


Dragonfly

Quote from: flo on May 22, 2008, 10:39:05 AM
Thanks darron, from now on: I'll do it your way.  ;D


Darrons way (the alternate version shown below) is the same as the way Dave Barber and I do it, with the addition of two small wire connections...it'll work well for ya !


flo

Dragonfly, I like the symmetry of the drawing posted by you (also from darren, right?) but what about the following:
http://www.diystompboxes.com/smfforum/index.php?topic=35693.0
That thread is stating not to put the LED and ground connections in the middle switch row but to put them on the outside in order to avoid popping due to some "arcane" leakage, right? But somehow that tread did not result into a solid consensus.
If its valid however, then "Figure B" posted by darren in:
http://www.dazatronyx.com/support/true-bypass-technique.pdf
is to be preferred.

This switch wiring stuff is driving me crazy...  ;)

Dragonfly

Quote from: flo on May 22, 2008, 12:00:25 PM
Dragonfly, I like the symmetry of the drawing posted by you (also from darren, right?) but what about the following:
http://www.diystompboxes.com/smfforum/index.php?topic=35693.0
That thread is stating not to put the LED and ground connections in the middle switch row but to put them on the outside in order to avoid popping due to some "arcane" leakage, right? But somehow that tread did not result into a solid consensus.
If its valid however, then "Figure B" posted by darren in:
http://www.dazatronyx.com/support/true-bypass-technique.pdf
is to be preferred.

This switch wiring stuff is driving me crazy...  ;)

In the 400 or 500 stompboxes I've built, I've never had a problem using my method... I use pulldowns on the input and output of the circuit, provided it doesnt have "pots" there (like the Bosstone, for instance)... no issues with LED noise, etc.

I guess it works well for Dave Barber too...he's built WAY more than I have, and uses this method as well....in fact that's where I got it from.

flo

Well, there's nothing like a good amount of practical experience... Thanks for the info!   8)

jlullo

yes, i'll have to add, that i too use the DFly method... if for no other reason than it's the one i was most able to memorize!

PurpleStrat

Quote from: darron on May 22, 2008, 08:34:08 AM
don't forget my way (:

http://www.dazatronyx.com/support/true-bypass-technique.pdf

grounds the input when in bypass too, but it also makes it so that when you bypass the signal the audio only has to go through one switch, giving twice as good continuity :P

plus it looks simple i guess. i have never seen anyone else do this, but analog mike said that he did (which i thought was cool as): http://www.diystompboxes.com/smfforum/index.php?topic=56137



I am pretty sure my Skreddy Mayo is done this way to.

darron

Quote from: PurpleStrat on May 23, 2008, 12:12:53 AM
Quote from: darron on May 22, 2008, 08:34:08 AM
don't forget my way (:

http://www.dazatronyx.com/support/true-bypass-technique.pdf

grounds the input when in bypass too, but it also makes it so that when you bypass the signal the audio only has to go through one switch, giving twice as good continuity :P

plus it looks simple i guess. i have never seen anyone else do this, but analog mike said that he did (which i thought was cool as): http://www.diystompboxes.com/smfforum/index.php?topic=56137



I am pretty sure my Skreddy Mayo is done this way to.

i didn't even know what that was until i googled it (:

should be used more often, not sure why people do it...
Blood, Sweat & Flux. Pedals made with lasers and real wires!