Schematics & Modifications (mods)

MP-1 Tone Signature Mod descriptions

Started by Kim

Pages1 2 3

Replies: 31
Views: 31,951

March 04, 2020, 11:41:20 PM
by rnolan

The Vault = Schematics and Mods

Started by Dante

Pages1 2 3 ... 6

Replies: 83
Views: 220,115

February 09, 2024, 05:56:39 AM
by Harley Hexxe

Replacement for op amp listed in mp-1 noise mod

Started by kissfan113

Replies: 3
Views: 2,124

May 31, 2023, 02:18:22 PM
by MarshallJMP

Custom MDRT installed

Started by Aelfad

Replies: 2
Views: 2,934

March 01, 2022, 01:38:38 PM
by Aelfad

Wanted: Digitizer 4 and DS-4 Controller Schematics

Started by GuitarBuilder

Replies: 0
Views: 3,271

May 21, 2019, 08:27:04 PM
by GuitarBuilder

MP-1 classic MOD

Started by pgmlml

Replies: 8
Views: 3,684

October 13, 2021, 12:39:33 PM
by MarshallJMP

MOVED: Re: The Vault = Schematics and Mods

Started by rnolan

Replies: 0
Views: 4,020

August 09, 2018, 05:37:31 AM
by rnolan

Which opamps are in the signal path?

Started by Overtone85

Replies: 2
Views: 4,066

June 14, 2019, 04:34:02 AM
by MarshallJMP

Searching Schematics for B200S

Started by misterwins

Replies: 2
Views: 4,152

April 03, 2014, 11:40:48 PM
by rnolan

SS and noise mod

Started by bunkyloo

Replies: 3
Views: 4,252

March 01, 2019, 01:15:30 PM
by MarshallJMP

Schematic for the B500B Needed, issues with both channels...

Started by BoWeevil

Replies: 1
Views: 4,296

July 17, 2014, 02:37:12 AM
by MarshallJMP

MOVED: Bar's Open!

Started by Systematic Chaos

Replies: 0
Views: 4,453

June 27, 2015, 10:42:26 PM
by Systematic Chaos

MP1, Which noise mod Original or V2?

Started by grindliner

Replies: 1
Views: 4,784

September 21, 2017, 03:38:40 AM
by MarshallJMP

MP-1 rear input to Line Level mod?

Started by El Chiguete

Replies: 2
Views: 4,798

April 06, 2014, 03:50:14 PM
by El Chiguete

MDRT connections

Started by Aelfad

Replies: 8
Views: 5,046

March 27, 2019, 01:51:42 AM
by Rusty

MP1 PCB layout drawings

Started by Rusty

Replies: 5
Views: 5,115

January 09, 2019, 02:07:08 PM
by Rusty

Tight Plexi Mod, Remember it?

Started by peoriashows

Replies: 7
Views: 5,137

July 25, 2018, 05:11:01 AM
by rnolan

Backlight Mod for MP1, MP2?????

Started by Satch

Replies: 3
Views: 5,445

June 14, 2014, 02:04:46 PM
by Sparker

Stereo mp1 rig mod ?

Started by Batsinthebelltower

Replies: 3
Views: 5,503

February 01, 2015, 01:26:51 AM
by rnolan

Adjusting gain and distortion

Started by trader144

Replies: 3
Views: 5,520

December 16, 2014, 11:20:57 AM
by MarshallJMP