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Messages - Arcane22

#1
So it does. I should have known there'd be something similar. If there was a Mount Rushmore of DIY pedal builders you know Brian would be on it.
#2
Aye I did wonder what the effect on volume would be, if any, given the resistance is now halved. But, I've got more than enough volume tk spare with this thing so hopefully nothing drastic will occur. And I can need up the pots to 250k to restore that value if I needed to.

Cheers for the help guys, I'll opt for the third option as it requires 6 lugs being wired rather than 9, and 9 doesn't seemingly offer any obvious benefit that justifies the pain in the hole.

Onwards and upwards.
#3
Won't there be a dropout of sound and/or a pop with that method?
#4
Bear with me a sec.

Grr.

So I've got a distortion pedal. I'd like to have 2 volume controls that you can switch between, kinda working like amp channels I guess. Set one quiet, set one loud and it's sort of an inbuilt boost (almost). I'll also be using a bi-color red/green LED which I've drawn up, but I can't figure out the easiest/safest way to make the 2 pots switch seamlessly without popping etc.

I started off with this:



But was informed that the volumes would be interactive.

Then I thought about a 3pdt. 2 poles for the switches, 1 pole for the LED (wiring not shown here sorry), like this:



Then I heard from PedalPCB about just switching the outputs of lug 2 and leaving the inputs conjoined, like this using a DPDT (again the other pole is for the LEDs):



With the pin at the end there being the output pad.

The last method seems the easiest and most painless as one consideration mentioned with the middle method (switch poles before and after the pots) was a dropout as the switch is a break before make style so there'd be no anything for a split second before the connection sorts itself out.

This is going in a distortion pedal btw. Nothing amazingly fancy. Some clipping stages, then an active tone stack, then out through a 10uf cap into the volume pot as a regular voltage divider. I'm just trying to work out how to add a silent, instant switch where each pot is isolated from the other.

Any ideas?
#5
You = MVP.
#6
Alrighty, thanks man. Just so we're on the same page is there a link to the most up to date eagle library around here? I think the one I have might be an older one as the lugs look to be about 3mm apart.
#7
Hello there,

I'm trying to confirm that the SPDT toggle switches in the Madbean eagle library correspond to this:

https://www.taydaelectronics.com/mini-toggle-switch-spdt-on-on.html

They list a Smallbear link in the description but that's no good for me where I am plus my work have an account with Tayda so I shop there. My concerns are the pads look too close together but if anyone has any actual hands on experience with the library and Tayda switches I'd love to hear about it.

Cheers.