Seljetnoma kindly sent me some detailed photos of his Rockett Blue Note OD (thanks Frank), and I traced it with his help.

Looks like it's the same board and circuit as the Rockett Animal, with different component values, so someone might like to work out those values from the pic in the other thread and we can solve that one also.

If someone does it and wants to send me the values I can easily update this schemo to the new values, and post it in the other thread.

Firstly.. here's a couple of...

You'll all know my hatred of the crappy TPDT and similar footswitches.

I still have customers who insist on true bypass and a solid copper path bypass . Buffered bypass is almost always better, but just to satisfy these (very wealthy / influential) musicians, I frequently use bistable relays. Many players are deeply distrustful of mains powered effects, and (perversely) demand batteries that last for many hours. I also have a large supply of really sturdy SPDT footswitches (like the old...

hey guys,
anyone got a schem, layout and or gut shots of one of these beasts?

i hear it calling from beyond the grave....

jimi.....jimi...ressurect my ass....

please help if possible!!

i, myself, and me as well as the karma of the world will thank you...

Hi guys, does anyone know any good mods for a stock Boss HM-2?

I'm especially looking to increase the bass response.

Cheers, Joe.

BOSS-HM-2-SERVICE-NOTES.pdf

I'm half tempted to get a Liverpool just to see what's inside, but if someone has already had a look, I'd be interested to hear it.
Supposedly, some guy on YouTube bypassed the speaker sim so he could use it with his amp - that's what I'm looking for.

I got a Boss Hyper Metal HM-3 for repair. While I was looking for a schematic online, all of them are just mere drawings of HM-2, therefore I decided to trace the unit...

TL;DR: Xotic BB Preamp
Differences from BB: 2x Tl072 instead of 1x 4558 + 1x Tl072. 2x C1815 instead of 2n5088. Larger power caps.

I bought one of these to see what it was.
2x TL072, 2 transistors (C1815). Pots are B100K volume, A1M gain, B50K treble, B50K bass.
Input cap is 22n. One IC has 2 Si diodes and a 51pf cap in the in the loop. One IC outputs to a 10uF cap into the volume control, which then goes to a 100n cap.

Cap markings:

2 ceramic caps
151
510

11 film caps
223
???, big, right...

Ladies and gentlemen, let me introduce you the long awaited reverse of what some consider as the best chorus ever made.
It's taken from an original 80's version. I can't tel if the actually made SCF is the same or if there are revisions of the old one

BUT some will have to work a little on it : it was already a hellish work for me to put all that on tracing paper (and did some retouching with graphic editor) and lets say I'm not in the mood to finish all that in any CAD especially considering...