The Workbench

Mods, amp repairs, tubes, maintenance, etc.

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  1. superleadfixer
    Sticky

    What is Gain?

    superleadfixer, Dec 8, 2006 ... 3 4 5
    Replies:
    85
    Views:
    123,327
    cruisemates
    Jan 13, 2021
  2. big dooley
    Sticky

    Stock Marshall Tube Codes

    big dooley, Nov 26, 2010 ... 3 4 5
    Replies:
    87
    Views:
    93,159
    Robert Brussow
    Sep 18, 2020
  3. burger

    Jake E. Lee modded 2203

    burger, Jan 27, 2021 at 6:02 AM
    Replies:
    5
    Views:
    148
    burger
    Jan 27, 2021 at 8:16 PM
  4. fitz288

    The Purple Haze: Done

    fitz288, Jan 20, 2021 ... 2
    Replies:
    29
    Views:
    601
    Dogs of Doom
    Jan 27, 2021 at 8:06 PM
  5. enaMi

    Failure of the Marshall MG15R

    enaMi, Jan 27, 2021 at 7:04 PM
    Replies:
    2
    Views:
    13
    Max Gahne
    Jan 27, 2021 at 7:43 PM
  6. RickyLee

    AC Elevated Heaters . . . .

    RickyLee, Jan 11, 2021 ... 4 5 6
    Replies:
    105
    Views:
    1,389
    mickeydg5
    Jan 27, 2021 at 7:36 PM
  7. rbotn

    Fire in Marshall2203

    rbotn, Jan 27, 2021 at 4:38 PM
    Replies:
    5
    Views:
    97
    MarshallDog
    Jan 27, 2021 at 6:27 PM
  8. Hebaton

    help from techs please

    Hebaton, Jan 6, 2021 ... 6 7 8
    Replies:
    141
    Views:
    2,479
    Hebaton
    Jan 27, 2021 at 7:02 AM
  9. NashYYZ

    Valvestate vs65r Pre-Amp Board Help

    NashYYZ, Jan 26, 2021 at 3:24 PM
    Replies:
    4
    Views:
    88
    SkyMonkey
    Jan 27, 2021 at 3:57 AM
  10. JvZ

    Half Bias reading on one side (JVM210) ..?

    JvZ, Jan 1, 2021
    Replies:
    14
    Views:
    307
    JvZ
    Jan 27, 2021 at 1:44 AM
  11. matttornado

    My Amp is Driving Me Crazy Trying to Troubleshhoot

    matttornado, Jan 22, 2021 at 11:55 AM ... 2
    Replies:
    34
    Views:
    483
    cruisemates
    Jan 26, 2021 at 9:43 PM
  12. LucaMetalMyLife

    Marshall JCM 2000 TSL Preamp Tubes turn off

    LucaMetalMyLife, Jan 24, 2021 at 9:45 AM ... 2
    Replies:
    27
    Views:
    410
    Dogs of Doom
    Jan 26, 2021 at 8:26 PM
  13. Javimart1212

    DSL20CR Output Transformer

    Javimart1212, Jan 26, 2021 at 12:17 AM
    Replies:
    5
    Views:
    142
    Gene Ballzz
    Jan 26, 2021 at 8:03 PM
  14. sweartome2

    50w OT in a 20W Marshall DSL?

    sweartome2, Jun 4, 2020 ... 2 3
    Replies:
    41
    Views:
    1,557
    thetragichero
    Jan 26, 2021 at 6:48 PM
  15. MatFnEhUK

    Gain reduction mod for the JVM

    MatFnEhUK, Jan 4, 2021 ... 2
    Replies:
    33
    Views:
    901
    JvZ
    Jan 26, 2021 at 10:13 AM
  16. cruisemates

    Jcm800 2204 - Still too much HUM

    cruisemates, Jan 22, 2021 at 4:02 PM
    Replies:
    10
    Views:
    234
    AndyD
    Jan 26, 2021 at 8:17 AM
  17. L902

    JVM Negative Feedback Pot Question

    L902, Jan 22, 2021 at 8:45 AM
    Replies:
    11
    Views:
    217
    spacerocker
    Jan 26, 2021 at 6:34 AM
  18. JHMvP

    External bias pot for user-control?

    JHMvP, Jan 24, 2021 at 9:44 AM
    Replies:
    11
    Views:
    198
    spacerocker
    Jan 26, 2021 at 6:31 AM
  19. lshindel

    Dsl100 doa

    lshindel, Jan 14, 2021
    Replies:
    15
    Views:
    347
    lshindel
    Jan 25, 2021 at 10:32 PM
  20. CROWEMAG

    JCM 900 SLX.....what is this sound?!

    CROWEMAG, Jan 25, 2021 at 8:49 AM
    Replies:
    4
    Views:
    136
    CROWEMAG
    Jan 25, 2021 at 3:47 PM
  21. JohnH

    Simple Attenuators - Design And Testing

    JohnH, Oct 21, 2017 ... 75 76 77
    Replies:
    1,527
    Views:
    158,519
    JohnH
    Jan 25, 2021 at 4:33 AM
  22. JM5010

    Silvertone 1484

    JM5010, Jan 22, 2021 at 8:23 PM
    Replies:
    7
    Views:
    162
    JM5010
    Jan 25, 2021 at 3:01 AM
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