Doom Room 1 knob Muff Group DIY

[new05002]

Okay a few pieces of information. You will not be able to buy all the parts from 1 supplier.

The internal small trimmer is mouser part number: 72-T70YE-100K. No other choices besides that one will work.

Diodes are 1n914. Those are all that will fit if you wanna do a flat mount to the board. Vertical mount you could try others.

If you wanna mount the board on the pot you need a pcb solder style pot so the board will be attached to that. Make sure when you soldering it on, you put a small piece of cardboard between the pot and the board so that you have proper space. Remove after you solder the pot to the board.

Dont forget a LED and LED bezel.

The 1uF cap that is connected to the Volume pot is a WIMA MKP2 cap, AFAIK no other 1uF cap will fit that slot.

2n5088 is the Q I picked for this circuit but anything with a similar pinout will work (npn only)

I have a drill out for the enclosure we used but other enclosures could be used so long as they are larger.

[odontophobia]

thanks nick.

does summit have the master parts list? i don't remember if it was posted in this thread or not.

[AxAxSxS]

Awesome Nick! Is the drill out the same as the image posted on the first page? And are there any supppliers you would add or recommend over what I put up earlier?

[new05002]

thanks nick.

does summit have the master parts list? i don't remember if it was posted in this thread or not.

he has the parts list from the scheme.

[new05002]

Awesome Nick! Is the drill out the same as the image posted on the first page? And are there any supppliers you would add or recommend over what I put up earlier?

Basically yes but I have a pdf version for 1:1 scale printing.

I would use Mouser if you going to order in large bulk say 50-200 for a single part. You will have to use them either way to get 2 of the parts on the list (internal trimmer and the 1uF output cap). Else you can snag some things from Mammoth Electronics or Pedal Parts Plus

[AxAxSxS]

You rule man. I am still willing to bulk buy if it will save us all some pennies, but I doubt we'll have quite that many being made.

Senor Pinnacle, let me know if I'm wrong about that.

[Barracuda]

Anyone who wants to experiment with their own mods, this is the place to read about the circuit and what components do what. It's a really nice easy to follow explanation.

http://www.kitrae.net/music/big_muff_guts.html#Circuit

[ryan summit]

we are at 22 as of right now
im gonna let it ride till sunday-monday
anyone else who wants in
include address and quantity in pm
my one knobber folder overfloweth
only wanna have to save that one pm
as much as i cherish smalltalk..

[Krosis]

Ryan, are you building them or just sharing parts from bulk?

[AxAxSxS]

He's ordering the PCB's. Enclosures and parts will be on the individual.

[Krosis]

Ah I get it. A lot of this stuff confuses me.

[moose23]

I can build full pedals for Euro folks and maybe populate boards/full pedals for US folks if no one over that side wants to take it on.

I'd already have a stock of most if not all components needed so not too into a group buy on parts myself but I would add bitcheslovemyswitches.com to the supplier list for jacks/switches/cases/knobs.

[DannDubbleEwe]

uhhhh so down

[BitchPudding]

I can build full pedals for Euro folks and maybe populate boards/full pedals for US folks if no one over that side wants to take it on.

I'd already have a stock of most if not all components needed so not too into a group buy on parts myself but I would add bitcheslovemyswitches.com to the supplier list for jacks/switches/cases/knobs.

If you do end up doing US how much would it cost?

[deathmonkey]

I'm glad this is being resurrected. Anyone want to take on the job of etching enclosures?

Since I etched the originals, I can etch these guys for people that want things etched. It may be a lot of shipping back and forth for folks that want it, but i can try to minimize what i charge to basically cost for this project.

Full disclaimer though: I have a bum knee that I just had surgery on a week ago and the wife just was in a car accident and broke her leg. I will be a little slow to get them done, but would be more than happy to help the doom brotherhood.