I've been waiting for this one for a while. I'm almost disappointed that it's confirmed my suspicions that it's an Opamp Big Muff with the clipping removed, a switch between the two tone controls and an Op amp swapped. Needless to say I'll be trying it this week
Swapping the single op-amp for a dual was a nice touch, since they used the extra output for buffered vref, so you don't have to to have two sets of resistors to bias like the original op amp muff. Simplifies the design, improves the circuit, and reduces the parts count.
In the UK and having a hard time finding a specific Type 2 DPDT. Lots of DPDT On-On-On to be found but none seem to specify their type; even checking the data sheets doesn't show the terminal connections in each position. Any advice or guidance on how to determine the "type" when looking? Cheers
Oh hell yeah
ReplyDeleteI've been waiting for this one for a while. I'm almost disappointed that it's confirmed my suspicions that it's an Opamp Big Muff with the clipping removed, a switch between the two tone controls and an Op amp swapped. Needless to say I'll be trying it this week
ReplyDeleteAgreed, I was disappointed after reading about it some time ago. Still interested though.
DeleteSwapping the single op-amp for a dual was a nice touch, since they used the extra output for buffered vref, so you don't have to to have two sets of resistors to bias like the original op amp muff. Simplifies the design, improves the circuit, and reduces the parts count.
DeleteTag this one Anders, its pretty damn good!!
ReplyDeleteDammit Ian! You should be head elf in Satan's pedal workshop....err Santa's workshop, I was going to build this tonight. Foiled again!
DeleteLol!!! Its way to cold to go outside, may as well make a pedal or three
DeleteThis is a badass muff
ReplyDeleteagreed this thing rips. thanks for the upload!
ReplyDeleteIn the UK and having a hard time finding a specific Type 2 DPDT. Lots of DPDT On-On-On to be found but none seem to specify their type; even checking the data sheets doesn't show the terminal connections in each position.
ReplyDeleteAny advice or guidance on how to determine the "type" when looking?
Cheers
Doesnt matter which one you buy mate, any would work
Deletehttps://forum.pedalpcb.com/threads/can-someone-demystify-%E2%80%9Ctype-1%E2%80%9D-versus-%E2%80%9Ctype-2%E2%80%9D-dpdt-switches-for-me.5385/
Ah, so did you just swap the wiring to the corresponding poles, if you happened to get a Type 1 when ordering?
Delete