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DIY Stompboxes => Building your own stompbox => Topic started by: humptydumpty on January 14, 2010, 12:55:53 AM

Title: 3PDT Amp Footswitch Help?
Post by: humptydumpty on January 14, 2010, 12:55:53 AM
I have a diagram for a peavey valveking 100 footswitch, but was wondering if it could be downgraded to one switch with one LED, to notify which channel is on.

I will post the wiring diagram if it is needed.
Title: Re: 3PDT Amp Footswitch Help?
Post by: petemoore on January 14, 2010, 01:16:06 AM
I will post the wiring diagram if it is needed
 We like to make our wiring diagrams feel needed, they do so much for everyone.
 Otherwise it's 20 questions, questionable quality.
Title: Re: 3PDT Amp Footswitch Help?
Post by: humptydumpty on January 14, 2010, 01:36:12 AM
Well here it is, sorry i didnt label it, but it goes like this from top to bottom (open-ended lines)
1. sleeve
2. ring
3. tip

(http://img44.imageshack.us/img44/1766/42557043.jpg)
Title: Re: 3PDT Amp Footswitch Help?
Post by: humptydumpty on January 14, 2010, 02:16:56 AM
damnit, those circles are leds

Title: Re: 3PDT Amp Footswitch Help?
Post by: duckpow on January 14, 2010, 03:56:13 AM
Maybe something like this?

(http://img687.imageshack.us/img687/5533/oneswitch.jpg)

...don't know if it will work... depends on how the amp is designed
Title: Re: 3PDT Amp Footswitch Help?
Post by: metallo on January 14, 2010, 06:54:37 AM
If I understood your question correctly, you want to reduce a 2-function foot switch to a 1-function foot switch.

This can be done with a single SPST by removing the other part like so:
(http://img693.imageshack.us/img693/2190/crudswitchfixd42557043.jpg)

You can always treat yourself to a 3PDT, but a SPST is all you need.

If the wrong function is selected, change your tip/ring wiring.

If the wrong option is selected for the other function that you don't want on the switch, then play around with your stereo/mono jacks until you achieve what you want.
Title: Re: 3PDT Amp Footswitch Help?
Post by: humptydumpty on January 14, 2010, 01:48:42 PM
no im trying to add both switches into one, so there is no need for two switches
Title: Re: 3PDT Amp Footswitch Help?
Post by: humptydumpty on January 15, 2010, 01:08:23 AM
bump? 
Title: Re: 3PDT Amp Footswitch Help?
Post by: PRR on January 15, 2010, 08:38:23 PM
Two one-way switches offer FOUR possible settings:

off-off
off-on
on-off
on-on

There's no standard foot-switch to do that.

There used to be switching that worked like a motorcycle shifter. Each click ratchets into another gear. While bikes should not do a 4-1 shift easily (roAAAAAAARRRRRRR!sputt), that's often OK in 4-way audio selection, so the ratchet sweeps 1-2-3-4-1-2-3-4-1-2-3... However that was rarely a standard nor cheap part. The only "low price" version I can think of was the head-stepper on an 8-Track car tape player, and that would need re-thinking how the switching goes (probably 3 diodes).
Title: Re: 3PDT Amp Footswitch Help?
Post by: humptydumpty on January 21, 2010, 11:56:41 PM
would this work, maybe?

(http://img96.imageshack.us/img96/9112/21312i.jpg)