[773] Noisy 3PDT Switches?

Date: September 30th, 2010 | Comments : [3] | Categories: DIY.

I use lots of 3PDT switches in stompboxes, and I find them to be excellent with a very low failure rate. The 3PDT makes a very solid mechanical thunk as it toggles, and some people claim that it is microphonic and causes noise. I have never found the footswitch to be microphonic, but it is a known fact that some high gain effects pedals are! Check out Bill Rupperts’ Effectology tutorial where he is using a Big Muff pedal as a drum (starts around 1:10).

It’s not the switch that’s popping… it’s your high gain pedal.

One alternative to lessen switch noise with microphonic pedals is to use a relay bypass with a soft momentary switch.


3 Responses to “Noisy 3PDT Switches?”

[2278] Marinski Says: 6:37 pm, August 8th, 2011

Oh, I so want to use the relay bypass you described, but the project is discontinued and the code for the PIC is not available 🙁 Now I am considering educating myself to do PIC programming so that I can replicate your project.

[2279] admin Says: 7:40 am, August 9th, 2011

The AMZ Relay Bypass uses an AVR microprocessor to control the relay and other functions, but you could use a PIC since that is what others are using for similar projects.


regards, Jack

[641495] Jerry Says: 11:02 am, April 21st, 2015

I’ve done well on most pedals running a 1M resistor from the output lug that connects to the vol pot and the output sleeve. My fuzz face laughs at this. Its not especially high gain, but does the feedback loop make it think it’s high gain?


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