This bit is an absolute lie from Warm Audio. There are germanium transistors in there but they are generic unbranded Chinese units and not NOS OC75s. Mullard OC75s sell for about £25 each these days and finding enough of them in the right gains and leakage to make the numbers Warm Audio are making isn't possible.
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Those are not Mullard OC75s.
Warning: Long post, including some history on NOS Ge x-sister fuzzers...
When the
Warm Bender Fuzz announced & I saw the build *ad*, I knew immediatly it was

B$, lies & hype...
Then when the gut shot was uploaded to T.O.P. it was confirmed those "NOS OC75" x-sisters were

fake.
Without a doubt those are
purposely unbranded metal can TO1 transistors (wrong package for OC75) & since it's Warm Audio they're probably
brand new "NOS" from Chy-nah (DSI Repros?)
Of course there's no shortage of gullible morons ready to *believe* a shysters that's widely known for ripping off packaging, trade marks/dress from other manufacturers
When you've lost your honor, you just boldly proceed ahead — Nietzsche
Anyone that's paid attention to the vintage fuzzer game over the last 25+ years, even a lil' bit, knows the story ~ Only the uninformed would believe a stash of OC75s *suddenly* appeared like *magic* somewhere, somehow, in some rando warehouse ~
Why of course those greedy hordes of dedicated/experienced/skilled vintage fuzz pedal masters missed it! (Castledine, D*A*M, Pigdog, Analog.man, Williams, Jimmy Behan et al.)
It must have been karma!
Reality is, that a production run like the
Warm $hit Bender would require 10s of 1000s of "NOS" x-sisters located, sorted out & "NOS" x-sister stock became more-or-less *unobtanium* a decade+ ago, *plus* real vintage *NOS* germanium transistors are inconsistent, to say the least, especially *NOS* Mullard parts.
Note: The *master* builders have been stocking up/hoarding NOS OC75s since the 90s, dumping *FAIL* parts on eBay, here & there
Now you know where a *lot* of NOS x-sisters *suddenly* appeared from for those
Build Your Own Clone et al. builds...
Even ol' Mike Fuller ran into the *unobtanium* wall when he geared up for the 69' fuzz, switching over to repro NKT275s for production...
It's also what killed the Lumpy's, after he got caught relabeling x-sisters for NOS cred, by one of the *masters* (there's other frauds out there, but I'm gonna stop there)...
When I saw the T.O.P.
El Cheapo Brigade getting aroused among themselves, over the
Warm $hit Bender, I sat back & let the circle jerk rip!
Never interrupt your opponent morons while he is they are in the middle of making a mistake ~ Sun Tzu
I stopped "contributing" on
The Gear Page right after the COVID vax stupidity hit ~ Have to admit a bit of
schadenfreude thinking about how one day all those new T.O.P. Reddit kiddies will figure-out (maybe) how they got snookered, some right after they actually plug into a *real* OC75 tone bender, built by
One Of The Masters
Note: the OC76 x-sisters are probably real, as they aren't highly sought after & *very* different from OC75/OC81/NKT275 et al. ~ A "properly" built fuzzer can sound good-to-great with different x-sisters (a lot of factors involved), maybe even Tone Bender-ish, but they will *not* sound like properly sourced & sorted *real* NOS Mullards/New Market NKTs.