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DIY Stompboxes => Building your own stompbox => Topic started by: saxtim on January 13, 2004, 01:27:28 AM

Title: wiring 3PDT switch w/positive ground
Post by: saxtim on January 13, 2004, 01:27:28 AM
Just getting to putting my fuzz face into its enclosure and I struck a problem - I have no idea how (or even its possible) to wire up a positive ground circuit on a 3PDT switch w/LED indicator.  Anyone got a diagram of how to do it (couldn't find one on GGG - the layout diagram only includes DPDT switches).

tim
Title: wiring 3PDT switch w/positive ground
Post by: PB Wilson on January 13, 2004, 10:06:42 AM
I was in the same boat when making my Tone Dog pedal. I followed the layout from General Guitar Gadgets that uses a 3PDT but I switched around the polarity (9V+ is now 9V-) and I switched the direction of the LED. Mine works fine hooked up this way. Good luck.

If anyone else has some insight please chime in. I believe that this will work, but I may be missing something. I'm still kinda new at this.
Title: wiring 3PDT switch w/positive ground
Post by: Mike Burgundy on January 13, 2004, 03:24:22 PM
The bypass DPDT stays the same. The only thing that's different is with the resistor/LED: instead of +/resistor/LED/switch/ground, you wire -/resistor/LED/switch/ground and reverse the LED. That's it.
Title: wiring 3PDT switch w/positive ground
Post by: saxtim on January 13, 2004, 06:13:23 PM
that seems straight forward enough - thanks

tim