Welcome To the Hoffman Amplifiers Forum

September 07, 2025, 06:11:11 am
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Marshall origin 20  (Read 1657 times)

0 Members and 1 Guest are viewing this topic.

Offline seth pittham

  • Level 1
  • *
  • Posts: 2
  • I love Tube amps
Hoffman Amps Forum image
Marshall origin 20
« on: August 02, 2021, 11:54:57 am »
Hi guys. Anyone have a schematic for the above. I have one in with low gain. All valves good. There seems to be lots of silly relays and stupidity around the board.
Cheers

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Marshall origin 20
« Reply #1 on: August 02, 2021, 12:22:37 pm »
Probably need to contact Marshall for current production stuff.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

 


Choose a link from the
Hoffman Amplifiers parts catalog
Mobile Device
Catalog Link
Yard Sale
Discontinued
Misc. Hardware
What's New Board Building
 Parts
Amp trim
Handles
Lamps
Diodes
Hoffman Turret
 Boards
Channel
Switching
Resistors Fender Eyelet
 Boards
Screws/Nuts
Washers
Jacks/Plugs
Connectors
Misc Eyelet
Boards
Tools
Capacitors Custom Boards
Tubes
Valves
Pots
Knobs
Fuses/Cords Chassis
Tube
Sockets
Switches Wire
Cable


Handy Links
Tube Amp Library
Tube Amp
Schematics library
Design a custom Eyelet or
Turret Board
DIY Layout Creator
File analyzer program
DIY Layout Creator
File library
Transformer Wiring
Diagrams
Hoffmanamps
Facebook page
Hoffman Amplifiers
Discount Program