Is the Sustainar a BM variant that Boris is associated with? Haven’t heard of it before but that’s not surprising given how many there are out there
Well if that’s the case probably won’t even need to add it to the wish list! Just build a Muffin with the right values, eBay up the right PNP transistors, EDIT - and use an inverter charge pump footswitch boardThe elk is the one they're known for, yeah. A couple of other folks have cloned it as well. Scant differences aside from the tone stack, which has a slightly weird response.
Well if that’s the case probably won’t even need to add it to the wish list! Just build a Muffin with the right values, eBay up the right PNP transistors, EDIT - and use an inverter charge pump footswitch board
If they tweak it then totally agreed, but I also wouldn’t be surprised if they go the route of their Park Fuzz, or the Rat chunk of the Life Pedal, and make accuracy of the circuit the selling pointWho knows, they may do something extra with it—EQD make excellent stuff, and their tweaks to old circuits are generally sensible and sound great.
But then there’s no mojooooooooooooAlso, in my experience (and those with ears of crystal may argue) the transistor selection for big muffs is pretty non-crucial. There's so much gain and inter-stage EQ happening that tweaking the tone control values probably has the biggest effect of any mod on those things.
I wouldn't worry about the PNP/NPN thing, just build an NPN version and match the miller caps and tone section to the Elk and it should sound pretty much the same. At least as similar as any two vintage ones sound to each other.