Print Page - A/B Box Not Working as Planned

Title: A/B Box Not Working as Planned
Post by: blacklightruckus on May 12, 2012, 05:55:22 PM

Long time lurker, first time builder!

I'm making an A/B pedal that I found on the beavis audio web pages:

(http://www.beavisaudio.com/projects/ABSwitches/AB_DualLED.gif)

My wiring appears to be correct, but when I plug it in, I get a loud hum on one click, and nothing on the other. When I get the loud hum, both LEDs light up.

Heres a few pictures of my wiring (extra large, and don't worry about the big chunk I took out trying to drill this sucker):

(http://i.imgur.com/WpTDV.jpg)
(http://i.imgur.com/xrNNG.jpg)

Title: Re: A/B Box Not Working as Planned
Post by: blacklightruckus on May 12, 2012, 06:45:31 PM

My current thoughts are that the 3pdt switch is wired 'sideways'

any thoughts on that?

Title: Re: A/B Box Not Working as Planned
Post by: Quackzed on May 12, 2012, 07:37:20 PM

i'll second that. i think the lugs switch edge to edge not flat to flat..

l l l
: : :
l l l

l l l

not

_ _ _
_: _: _:
_ _ _

?!? i think, not sure how you wired it...

Title: Re: A/B Box Not Working as Planned
Post by: blacklightruckus on May 12, 2012, 08:05:03 PM

Indeed I did. Sucker works perfect now that I rewired it with the correct orientation!

DIYstompboxes.com

DIY Stompboxes => Building your own stompbox => Topic started by: blacklightruckus on May 12, 2012, 05:55:22 PM