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Forum: Theory & Design

  1. Why did the anode resistor die?

    Started by überfuzz, Today 08:44 AM
    • Replies: 3
    • Views: 19
    Today, 09:58 AM Go to last post
  2. Question about Pentode reverb drive circuit

    Started by SoulFetish, 08-15-2018 02:36 AM
    • Replies: 9
    • Views: 361
    Today, 04:42 AM Go to last post
  3. Matchless filament voodoo

    Started by Randall, 08-15-2018 04:04 AM
    • Replies: 20
    • Views: 495
    08-18-2018, 04:31 AM Go to last post
    • Replies: 12
    • Views: 312
    08-16-2018, 09:03 PM Go to last post
  4. Vibration mounting a socket with a tube shield

    Started by tubedood, 08-13-2018 08:08 PM
    • Replies: 8
    • Views: 288
    08-16-2018, 03:24 AM Go to last post
  5. Transformers

    Started by vintagekiki, 07-20-2018 10:34 PM
    • Replies: 7
    • Views: 373
    08-14-2018, 10:31 PM Go to last post
  6. Real TrainWreck mojo!

    Started by Chuck H, 12-31-2013 04:36 AM
    7 Pages
    1 2 3 ... 7
    • Replies: 231
    • Views: 27,434
    08-14-2018, 05:05 AM Go to last post
  7. Deluxe Reverb AB763 Grounding Scheme

    Started by mikepukmel, 08-03-2018 02:08 AM
    • Replies: 11
    • Views: 464
    08-11-2018, 10:44 PM Go to last post
  8. Educate me on Class D amp power supplies

    Started by Axtman, 07-28-2018 07:43 PM
    • Replies: 15
    • Views: 548
    08-11-2018, 12:32 AM Go to last post
  9. 4 tube push pull question

    Started by tpaairman, 08-01-2018 05:10 AM
    • Replies: 21
    • Views: 633
    08-03-2018, 02:40 PM Go to last post
  10. No Power Amp Volume Ctrl on some Peavey amps?

    Started by tbonuss, 07-26-2018 01:45 AM
    • Replies: 5
    • Views: 304
    08-03-2018, 12:23 AM Go to last post
  11. isolation transformer install

    Started by Randall, 07-09-2018 10:52 PM
    2 Pages
    1 2
    • Replies: 50
    • Views: 1,434
    08-02-2018, 01:20 PM Go to last post
    • Replies: 21
    • Views: 712
    08-02-2018, 04:42 AM Go to last post
  12. Tube rectifier B+ differences

    Started by tubedood, 07-30-2018 04:21 PM
    • Replies: 31
    • Views: 727
    08-01-2018, 05:25 PM Go to last post
  13. Not sure which output transformer to use.

    Started by tpaairman, 07-30-2018 05:07 AM
    • Replies: 12
    • Views: 434
    07-31-2018, 04:46 PM Go to last post
  14. Does cap voltage affect tone?

    Started by daz, 03-31-2009 09:30 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 113
    • Views: 5,134
    07-28-2018, 10:32 PM Go to last post
  15. Adding a bypass capacitor... effect on the NFB resistor?

    Started by tubedood, 07-15-2018 07:31 AM
    2 Pages
    1 2
    • Replies: 35
    • Views: 1,177
    07-28-2018, 06:56 PM Go to last post
    • Replies: 4
    • Views: 353
    07-23-2018, 11:17 PM Go to last post
  16. Dr. Z MAZ reverb circuit

    Started by 52 Bill, 07-19-2018 06:08 AM
    • Replies: 11
    • Views: 636
    07-23-2018, 05:12 PM Go to last post
  17. EL83 OT impedance question

    Started by Pedro Vecino, 07-14-2018 12:11 PM
    • Replies: 32
    • Views: 859
    07-18-2018, 01:14 PM Go to last post
  18. Hartke B900

    Started by Dave With The Blind Eye, 07-16-2018 01:51 PM
    • Replies: 3
    • Views: 159
    07-17-2018, 07:57 PM Go to last post
    • Replies: 1
    • Views: 261
    07-16-2018, 11:33 PM Go to last post
    • Replies: 23
    • Views: 597
    07-16-2018, 05:10 AM Go to last post
  19. 12A_7 @ 12.6V

    Started by hylaphone, 07-10-2018 08:14 PM
    • Replies: 3
    • Views: 272
    07-14-2018, 03:16 PM Go to last post
  20. mystery single ended output transformer

    Started by Randall, 07-09-2018 11:18 PM
    • Replies: 23
    • Views: 612
    07-11-2018, 07:21 PM Go to last post
  21. Heater voltage drop under load

    Started by nsubulysses, 07-10-2018 06:37 PM
    • Replies: 11
    • Views: 390
    07-11-2018, 05:44 AM Go to last post
    • Replies: 6
    • Views: 338
    07-10-2018, 12:30 PM Go to last post
  22. Load Resistor on Reverb Driver: opinions?

    Started by dcoyle, 07-09-2018 04:41 PM
    • Replies: 2
    • Views: 250
    07-09-2018, 05:30 PM Go to last post

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