EHX Big Muff w/ Tone Wicker Stripboard

VanWhy

Well-known member
Build Rating
3.00 star(s)
I really think this version of the Muff needs a DIY PCB version. Imo its enough to warrant a board. Only version I found is this older stripboard one. It works but only issue is its noisy as hell. Can't dime the volume or sustain or it squeals like a banshee. I think having all the offboard wiring doesnt help. Plus I suck at making it nice and neat. So, this is my petition for a PedalPCB board.

Aside from all that I like how it turned out. I like the black on Weston gray enclosure.

Externally I'm happy with it. Inside its disarray.
 

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Well done.
I believe the madbean muff has the tone bypass option, fwiw.
Thanks. The tone bypass is a feature on the new Muffin's as well. Just not the "wicker". Which, Im still honestly not sure what its doing but I think its removing a set of caps with the 3PDT switch.
 
Thanks. The tone bypass is a feature on the new Muffin's as well. Just not the "wicker". Which, Im still honestly not sure what its doing but I think its removing a set of caps with the 3PDT switch.
Ah. I always just assumed it was a bypass with a silly name.
Looks like @Bricksnbeatles dropped some knowledge here in post 8. Lifting one side of the treble blocking caps. Theory being the 4066 was used to prevent popping.
1786286926597.jpeg
Via FSB

May be cool to implement with a 3P4T as the general opinion on its usability seems to be "it depends on the guitar." Wicker plus the 3 historic values
Lift/47p/470p/560p
Learned something new today. I can go to bed now.
 
Can't dime the volume or sustain or it squeals like a banshee. I think having all the offboard wiring doesnt help.
that's a bummer.
should at least be able to dime the volume.

simply having offboard wiring isn't always the default culprit.
i would recommend trying a star ground arrangement - specifically at the input jack sleeve.
the input jack sleeve is good central node/place for this as it has direct continuity to the enclosure for maximum shielding effect (also make sure the jack contact point on/around the input/output jack enclosure holes are filed / metal bare).

suggestions with this:
- instead of sending the volume pin 1 back to the board (which goes to ground anyway) - try sending it back direct to the 'star ground'/central ground node (input jack sleeve). -> sometimes the ground routes on vero layouts are less than ideal and can cause these sort of problems.

- DC jack (-) - same thing.
- Board ground - same thing.
- FSw ground - same thing.
send them all to the input jack sleeve.


having said of all that,
from what i can see, it looks like there already is a sort of central ground node at the various ground planes/points on the FSw board, and maybe this is already good enough like this.... but idk, maybe not...being unable to dime volume seems resolvable...

(only making these suggestions if this is something you really want to resolve, otherwise feel free to ignore me lol)

Plus I suck at making it nice and neat.
nah this is pretty good, keep it up. solid core helps too.
 
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You could build identical Muffs on the Double Muffin PCB and omit the feedback caps on one side... not the most efficient, but a quick workaround if you really want to build one on a PCB right away.
Well that is a clever workaround. Out of curiosity why do you think no one has done a DIY PCB of a "tone wicker" variant? Maybe not really worth it? I mean its not the best Muff mod but I would still think there would be a market for it. Unless there is something else I'm missing.
 
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