The Workbench

Mods, amp repairs, tubes, maintenance, etc.

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  1. big dooley
    Sticky

    Stock Marshall Tube Codes

    big dooley, Nov 26, 2010 ... 3 4 5
    Replies:
    91
    Views:
    99,254
    sroberts5150
    Feb 15, 2021
  2. superleadfixer
    Sticky

    What is Gain?

    superleadfixer, Dec 8, 2006 ... 3 4 5
    Replies:
    86
    Views:
    126,717
    JP2036
    Feb 8, 2021
  3. burger

    Marshall JCM800 2204 - Headfirst Mods. Full play-through and DIY Guide.

    burger, Apr 15, 2021 at 6:11 AM
    Replies:
    4
    Views:
    169
    burger
    Apr 17, 2021 at 5:14 AM
  4. Matthews Guitars

    I have to rant. Vintage parts and new builds...just stop it.

    Matthews Guitars, Apr 6, 2021 ... 2 3 4
    Replies:
    70
    Views:
    2,050
    myersbw
    Apr 17, 2021 at 12:43 AM
  5. sandro70

    Marshall lead 30 burnt opamp issue

    sandro70, Apr 16, 2021 at 8:21 PM
    Replies:
    2
    Views:
    53
    Matthews Guitars
    Apr 16, 2021 at 10:27 PM
  6. XTRXTR

    Stories from the Basement

    XTRXTR, Apr 2, 2021 ... 2
    Replies:
    24
    Views:
    611
    XTRXTR
    Apr 16, 2021 at 8:58 PM
  7. StingRay85

    Blackburn/Mullard EL34

    StingRay85, Apr 13, 2021 at 4:09 AM ... 2
    Replies:
    26
    Views:
    612
    mildew
    Apr 16, 2021 at 8:16 PM
  8. vscrl1

    Peavey jsx 6550

    vscrl1, Apr 11, 2021 at 8:02 PM
    Replies:
    8
    Views:
    168
    vscrl1
    Apr 16, 2021 at 6:58 PM
  9. MatFnEhUK

    Gain reduction mod for the JVM

    MatFnEhUK, Jan 4, 2021 ... 3 4 5
    Replies:
    89
    Views:
    2,569
    em07189
    Apr 16, 2021 at 6:40 PM
  10. AndyD

    ‘79 2204 blown ht fuse

    AndyD, Apr 10, 2021
    Replies:
    17
    Views:
    272
    Matthews Guitars
    Apr 16, 2021 at 4:54 PM
  11. Rick Lee

    Anyone here upgrade the stock OT in their 1987x?

    Rick Lee, Apr 13, 2021 at 9:41 PM
    Replies:
    13
    Views:
    283
    Derrick111
    Apr 16, 2021 at 2:01 PM
  12. shredless

    Anyone have or use the Hot Mod?

    shredless, Apr 14, 2021 at 7:57 PM
    Replies:
    5
    Views:
    163
    David Szabados
    Apr 16, 2021 at 11:40 AM
  13. Redguitar

    Thanks Spacerocker

    Redguitar, Apr 15, 2021 at 6:34 PM
    Replies:
    0
    Views:
    77
    Redguitar
    Apr 15, 2021 at 6:34 PM
  14. Noise Under The Floor

    Anyone had issues with 2555X control pots?

    Noise Under The Floor, Jul 13, 2020 ... 2
    Replies:
    23
    Views:
    1,225
    dragonvalve
    Apr 15, 2021 at 4:28 PM
  15. Greg70

    Soldering Station Reccomendation

    Greg70, Nov 4, 2020
    Replies:
    11
    Views:
    386
    Greg70
    Apr 15, 2021 at 4:01 PM
  16. jessemhopkins

    Undoing mods on a 1987x

    jessemhopkins, Aug 7, 2020
    Replies:
    12
    Views:
    511
    XTRXTR
    Apr 15, 2021 at 2:30 PM
  17. Force235

    Has anyone replaced a Marshall amp front faceplate?

    Force235, Sep 17, 2019 ... 2
    Replies:
    20
    Views:
    2,420
    Matthews Guitars
    Apr 15, 2021 at 1:44 PM
  18. Bobbonne

    Origin 20 elements of schematic

    Bobbonne, May 9, 2020
    Replies:
    17
    Views:
    1,776
    Manco
    Apr 15, 2021 at 4:58 AM
  19. DesolationBlvd

    JTM30: Gutted it and turned it into a 2204

    DesolationBlvd, Sep 16, 2017 ... 2
    Replies:
    28
    Views:
    4,949
    DesolationBlvd
    Apr 14, 2021 at 10:01 PM
  20. TOR JOHANNESSEN

    Marshall 3210 (Lead 100 MOSFET) - No signal on boost channel

    TOR JOHANNESSEN, Apr 14, 2021 at 4:59 AM
    Replies:
    4
    Views:
    97
    thetragichero
    Apr 14, 2021 at 6:33 PM
  21. alpha al

    Vintage Impedence Selector Question

    alpha al, Apr 6, 2021 ... 2 3
    Replies:
    48
    Views:
    923
    Emtbreid
    Apr 14, 2021 at 4:30 PM
  22. Cockney_in_Texas

    Marshall Valvestate squealing

    Cockney_in_Texas, Apr 12, 2021 at 10:28 AM
    Replies:
    2
    Views:
    107
    Pete Farrington
    Apr 13, 2021 at 1:15 PM
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