MSA pedal steel guitar fuzz module  [schematic]

Discussion regarding early stompbox technology: 1960-1975 Please keep discussion focused and contribute what info you have...
Post Reply
User avatar
jreeves47
Breadboard Brother
Information
Posts: 103
Joined: 16 Sep 2010, 22:59
Has thanked: 100 times
Been thanked: 27 times

Post by jreeves47 »

These were installed on some MSA brand pedal steel guitars in the 1970's
Not my pic, from this thread - https://bb.steelguitarforum.com/viewtop ... highlight=
Attachments
PfKXCYV.jpg

User avatar
Axldeziak
Breadboard Brother
Information
Posts: 52
Joined: 23 Feb 2019, 16:18
Has thanked: 41 times
Been thanked: 38 times

Post by Axldeziak »

Said to be a slightly modified Jordon Bosstone.
Lots more info can be found here.
https://www.madbeanpedals.com/forum/ind ... ic=12647.0

User avatar
mauman
Resistor Ronker
Information
Posts: 428
Joined: 17 Jun 2017, 20:01
Location: Texas, US
Has thanked: 436 times
Been thanked: 184 times

Post by mauman »

Here's a schematic I did based on the photos, and a wiring diagram from MSA. I would use the same transistors as a BossTone, everything else is nearly identical between the two. Mike
MSA Steel Onboard Fuzz Schematic.pdf
MSA Steel Onboard Fuzz Schematic
(102.23 KiB) Downloaded 403 times
MSA_FuzzBoard_Wiring_Diagram.pdf
MSA Steel Wiring Diagram
(31.29 KiB) Downloaded 268 times

User avatar
Rambozo96
Breadboard Brother
Information
Posts: 51
Joined: 07 Oct 2018, 23:01
Completed builds: Superfuzz’s, Mosrite Fuzzrite, various Tonebenders, some oddball Russian stuff, MXR Distortion II, modded various DOD pedals to true bypass, opamp Big Muff.
Has thanked: 10 times
Been thanked: 40 times

Post by Rambozo96 »

I wouldn’t be a surprised if it wasn’t a Sho Sound Bosstone variant as those were quite favorable with pedal steel players (Buddy Cage being a noted user).

Post Reply