Foot switch type ID please?

Started by samzeter, July 11, 2017, 02:21:19 AM

Previous topic - Next topic

samzeter

Hi Guys
I'm new here but been building simple guitar pedals for about 5 months now. I'm stumped at the moment as I'm trying to finish my own schematic (to then create a PCB) of the 8tr Fuzz-Wah Shin-ei pedal. Unfortuantely, I'm stumped as to what this switch is as it doesn't seem to be a standard 3pdt foot switch - and even if I try and use a 3pdt I'm still missing out on a contact point as there are four needed as indicated in the schematic. Can anyone help as to how this switch is to be interpreted? or even called?


KarenColumbo

  • SUPPORTER
I see something of myself in everyone / Just at this moment of the world / As snow gathers like bolts of lace / Waltzing on a ballroom girl" - Joni Mitchell - "Hejira"

RickL

I think this is actually two separate dpdt switches, one for the fuzz and one for the wah. If it was a single switch, the dotted line would connect all four of the individual spdt switches.

duck_arse

can you link us to the complete circuit, it might enlighten us as to the use of the switch.

and, welcome to the forum.
" I will say no more "

EBK

Quote from: RickL on July 11, 2017, 11:55:50 AM
I think this is actually two separate dpdt switches, one for the fuzz and one for the wah. If it was a single switch, the dotted line would connect all four of the individual spdt switches.
+1
  • SUPPORTER
Technical difficulties.  Please stand by.

PRR

Sure looks like what RickL said: two DPDT.

Say you process food, raw, fried, baked, or fried-and-baked. Your kitchen traffic path/switching would be this:



Two buttons to divert food to fry, bake, fry+bake, or no-cook.

If you can't tell what position a switch is on by looking, *then* you might like two 3PDT, p3 working an LED. But until recent years, 3PDT were rare, so many older toys didn't do that.
  • SUPPORTER

samzeter

Thanks for the help guys, certainly solved this puzzle for me. I've attached the full schematic in case anyone was interested.