NOT! its not vintage because i made it about half an hour ago i but it sounds identical to a good sounding vintage NPN ramshead muff.
I didnt use any mojo parts either, just regular carbon film resistors, panasonic and box caps, 2N5089 transistors.
Its no surprise to me that it sounds good, most muffs sound good.
The reason i made it is because ramshead muffs go for stupid money these days and i wanted another muff, i now have 9.LOL but one doesnt have an enclosure because i salvaged the sovtek box for this pedal.

Seroiusly, ya’ll should make one it sounds really really good!