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Forum: Theory & Design

    • Replies: 14
    • Views: 97
    Today, 08:59 AM Go to last post
  1. Acoustic 370 repair

    Started by Thomas Robert, Yesterday 09:36 PM
    • Replies: 1
    • Views: 33
    Today, 05:55 AM Go to last post
    • Replies: 17
    • Views: 249
    Today, 05:40 AM Go to last post
  2. can I use this OT?

    Started by dmartn149, 06-08-2019 02:37 AM
    • Replies: 34
    • Views: 521
    Yesterday, 09:05 PM Go to last post
  3. Tweed Twin power reduction

    Started by Randall, 06-14-2019 07:09 PM
    • Replies: 20
    • Views: 224
    Yesterday, 07:18 PM Go to last post
  4. Subbing a resistor for a speaker

    Started by Randall, 06-13-2019 10:16 PM
    • Replies: 11
    • Views: 225
    06-14-2019, 10:49 PM Go to last post
  5. How to determine fuse rating

    Started by Randall, 06-12-2019 11:28 PM
    • Replies: 16
    • Views: 345
    06-14-2019, 08:21 PM Go to last post
  6. Reduced V1 Hum - New Trick (For Me that is)

    Started by HaroldBrooks, 04-28-2019 05:54 AM
    • Replies: 11
    • Views: 660
    06-12-2019, 07:08 AM Go to last post
  7. Hammond power supply cap subs

    Started by Randall, 06-07-2019 12:33 AM
    • Replies: 7
    • Views: 251
    06-11-2019, 10:50 PM Go to last post
  8. Output Transformer - 4 wires ?

    Started by HaroldBrooks, 06-10-2019 06:25 PM
    • Replies: 1
    • Views: 156
    06-10-2019, 08:51 PM Go to last post
  9. Output tube impedance

    Started by DaBreeze, 11-16-2009 01:38 PM
    2 Pages
    1 2
    • Replies: 59
    • Views: 20,796
    06-10-2019, 04:43 AM Go to last post
  10. Marshall origin series 20w....why 20?

    Started by daz, 06-09-2019 08:41 PM
    • Replies: 5
    • Views: 231
    06-10-2019, 04:24 AM Go to last post
  11. Dumb series/12.6V heater questions

    Started by Zozobra, 06-04-2019 11:18 AM
    • Replies: 5
    • Views: 231
    06-06-2019, 02:15 PM Go to last post
  12. Effects loop. why?

    Started by Sea Chief, 05-26-2019 02:55 PM
    3 Pages
    1 2 3
    • Replies: 83
    • Views: 1,441
    06-06-2019, 01:34 PM Go to last post
  13. low voltage single ended el84

    Started by cminor9, 05-29-2019 04:25 AM
    • Replies: 34
    • Views: 794
    06-05-2019, 02:52 PM Go to last post
    • Replies: 125
    • Views: 4,804
    06-04-2019, 02:05 AM Go to last post
  14. Ghost Notes - Use Scope to Track down ?

    Started by HaroldBrooks, 05-24-2019 12:41 AM
    • Replies: 16
    • Views: 354
    05-24-2019, 05:19 AM Go to last post
  15. Power supply variation

    Started by nsubulysses, 05-18-2019 08:58 AM
    • Replies: 24
    • Views: 680
    05-23-2019, 08:32 PM Go to last post
  16. PI drive for 6 power tube amp

    Started by nsubulysses, 05-20-2019 08:03 PM
    • Replies: 5
    • Views: 281
    05-21-2019, 10:17 PM Go to last post
  17. Ever wonder about the Sprague Atom controversy?

    Started by Randall, 05-17-2019 10:35 PM
    • Replies: 22
    • Views: 747
    05-20-2019, 12:53 PM Go to last post
    • Replies: 13
    • Views: 464
    05-19-2019, 05:09 PM Go to last post
  18. Maximum DC voltage on output of amp?

    Started by Axtman, 05-14-2019 04:57 AM
    • Replies: 2
    • Views: 292
    05-14-2019, 03:25 PM Go to last post
  19. cabinet shielding question

    Started by Randall, 05-06-2019 02:07 AM
    • Replies: 18
    • Views: 637
    05-12-2019, 02:50 AM Go to last post
  20. Pentode Triode Switch

    Started by überfuzz, 05-09-2019 01:45 PM
    • Replies: 5
    • Views: 381
    05-11-2019, 02:03 AM Go to last post
  21. 12DW7 Reverb

    Started by Natman, 12-02-2010 06:52 PM
    • Replies: 25
    • Views: 7,078
    05-09-2019, 03:09 AM Go to last post
  22. Tube reverb driver circuits

    Started by Rhodesplyr, 04-17-2010 01:58 AM
    • Replies: 18
    • Views: 11,581
    05-08-2019, 11:00 AM Go to last post

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