Marshall Reverb Fuzz Schematic?

[CJ]

Marshall 2021 Reverb Fuzz standalone box,

can not find a schemo online ,

any help help would be greatly appreciated!

 

[dai h.]

apparently, it's "similar to the Supa Fuzz / TB MK-II but a bit different":

https://www.thegearpage.net/board/index.php?threads/marshall-reverb-fuzz-unit-in-a-pedal.2055241/
(page with some of the schematics compared) :
http://fuzzcentral.ssguitar.com/mkII.php
one for sale in Germany which has some decent guts pics:

https://www.vintageandrare.com/uploads/products/95605/9632800/original.jpg?1672398447
https://www.vintageandrare.com/uploads/products/95605/9632798/original.jpg?1672398447
https://www.vintageandrare.com/uploads/products/95605/9632799/original.jpg?1672398447
https://www.vintageandrare.com/uploads/products/95605/9632801/original.jpg?1672398447
https://www.vintageandrare.com/uploads/products/95605/9632797/original.jpg?1672398447
source:
https://www.vintageandrare.com/prod...Unit-Model-2021-Black-Tolex-95605#prettyPhoto
another smaller chassis pic:

https://www.treblebooster.net/conte...-text-5q7xwr/01-marshall-2021-reverb-fuzz.jpg
from:
https://www.treblebooster.net/bsm-tonezone/ritchie-blackmore/effect-units
PCB that looks similar:

http://turretboard.knucklehead.dk/w...1/02/marshallSUPAfuzzREPLICAlayoutPCBaud1.png
source:
http://turretboard.knucklehead.dk/2011/02/28/vero-1968-marshall-supa-fuzz-mk2/
(reply #3 has some info on Supa Fuzz transistor gains from DAM) :
https://www.diystompboxes.com/smfforum/index.php?topic=97781.0
(some Supa Fuzz discussion with some high res board pics) :
https://www.freestompboxes.org/viewtopic.php?t=751&start=160
Couldn't find a schematic of the reverb section. This (reverb only) unit is supposedly similar:

https://reverb.com/item/22107037-marshall-2020-reverb-unit-1960s-black
(front panel plus some guts pics) :

https://images.reverb.com/image/upl...,t_large/v1555274031/ioopeglxq5c7beb3wqvl.jpg
https://images.reverb.com/image/upl...,t_large/v1555274029/kr03ol7uth9ybp5fuudy.jpg
https://images.reverb.com/image/upl...,t_large/v1555274028/jyu7zkdeh82rfgp5ancg.jpg
https://images.reverb.com/image/upl...upersize/v1555274027/rv9snhlngqav36bor2iv.jpg
https://images.reverb.com/image/upl...upersize/v1555274028/tkvulujgwojhpgrppvfz.jpg

 

[CJ]

thanks, good work!

looks like a Marshall super fuzz alright, the fuzz pot is set inside with the level pot on the front panel.

 

[dai h.]

glad to help. Was interesting reading about the associations with Blackmore and Moody Blues (and what seems to be a super low 10k at the input). Also somebody's comment about how the fuzz mixed with the reverb helped to create something more unique (something like that). Saw this also:

..so I guess (model) 2019 is the bass 20-watter, 2020 is Reverb, 2021 Reverb Fuzz, 2022 guitar 20-watter, and 2023 the (Supa-)wah. Could be a bit confusing searching for these models about now. They probably didn't imagine people would still dig this gear so many years later.

Oh, found another page with close-up perf/strip board pics (incl. one of the bottom)--"on sale" for the paltry sum of 580,000 yen (about USD4400 today) :

https://www.digimart.net/cat13/shop5069/DS07935239/

 

[musika]

Justin Hayward “My Brother” playing the Marshall Reverb Fuzz unit. Such a smooth sound - classic Moody Blues.