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Forum: Theory & Design

  1. DC coupled C.F. question

    Started by catalin gramada, 01-12-2019 07:38 PM
    2 Pages
    1 2
    • Replies: 43
    • Views: 590
    Today, 07:40 PM Go to last post
  2. OK to run a 5V4GA recto in a 6G9 Tremolux?

    Started by Randall, 01-09-2019 03:04 AM
    • Replies: 17
    • Views: 354
    Today, 07:30 PM Go to last post
  3. Need ideas for a limiter circuit

    Started by Gaz, 01-03-2019 11:21 AM
    2 Pages
    1 2
    • Replies: 48
    • Views: 1,118
    Yesterday, 05:09 AM Go to last post
  4. Switching scheme with muting and LEDs

    Started by frusciante89, 11-25-2018 05:44 PM
    2 Pages
    1 2
    • Replies: 42
    • Views: 1,358
    01-12-2019, 07:43 PM Go to last post
  5. Grid Current Emulation at Input to Power Amp

    Started by loudthud, 01-10-2019 08:57 AM
    • Replies: 11
    • Views: 305
    01-11-2019, 08:53 PM Go to last post
  6. Understanding "grid drive" to drive, 2, 4, 6 power tubes

    Started by nsubulysses, 12-31-2018 02:26 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 110
    • Views: 2,274
    01-10-2019, 09:47 PM Go to last post
  7. D.i.y. Bias Probe

    Started by chocopower, 11-28-2007 11:39 PM
    • Replies: 28
    • Views: 30,028
    01-05-2019, 04:12 AM Go to last post
    • Replies: 3
    • Views: 187
    01-04-2019, 02:51 PM Go to last post
    • Replies: 118
    • Views: 3,313
    01-03-2019, 10:02 PM Go to last post
  8. Parallel FX Loop help

    Started by hylaphone, 12-30-2018 10:14 PM
    • Replies: 1
    • Views: 181
    12-31-2018, 03:40 PM Go to last post
    • Replies: 18
    • Views: 683
    12-29-2018, 04:14 AM Go to last post
  9. Schematic analysis of the Marshall Valvestate 8008

    Started by Roberto, 02-18-2016 04:54 AM
    2 Pages
    1 2
    • Replies: 41
    • Views: 4,915
    12-24-2018, 03:26 AM Go to last post
    • Replies: 14
    • Views: 1,183
    12-23-2018, 04:28 PM Go to last post
  10. No load protection for Class D amp

    Started by Gaz, 12-20-2018 12:42 AM
    • Replies: 21
    • Views: 633
    12-22-2018, 03:04 PM Go to last post
  11. Fender Vibro King rated at 60 watts?

    Started by Randall, 12-17-2018 10:52 PM
    • Replies: 19
    • Views: 662
    12-21-2018, 08:35 PM Go to last post
  12. AC/DC powered amp

    Started by dkevin, 12-11-2018 06:57 PM
    • Replies: 4
    • Views: 209
    12-15-2018, 05:46 PM Go to last post
  13. MOSFET Follies question...

    Started by Gaz, 12-04-2018 06:40 AM
    • Replies: 11
    • Views: 624
    12-11-2018, 01:35 PM Go to last post
  14. Not sure which output transformer to use.

    Started by tpaairman, 07-30-2018 05:07 AM
    • Replies: 13
    • Views: 910
    12-11-2018, 09:40 AM Go to last post
  15. Question about Pentode reverb drive circuit

    Started by SoulFetish, 08-15-2018 02:36 AM
    3 Pages
    1 2 3
    • Replies: 94
    • Views: 3,698
    12-09-2018, 08:20 AM Go to last post
  16. 6G7-A Bandmaster tremolo

    Started by Randall, 12-03-2018 12:42 AM
    • Replies: 9
    • Views: 529
    12-05-2018, 06:01 PM Go to last post
  17. MOSFET Amp design

    Started by tpaairman, 12-03-2018 12:02 PM
    • Replies: 6
    • Views: 319
    12-04-2018, 04:40 AM Go to last post
    • Replies: 8
    • Views: 452
    12-02-2018, 06:35 PM Go to last post
    • Replies: 24
    • Views: 906
    12-02-2018, 02:19 AM Go to last post
    • Replies: 85
    • Views: 2,638
    12-02-2018, 12:37 AM Go to last post
  18. Hiwatt design question

    Started by catalin gramada, 10-21-2018 01:54 PM
    • Replies: 24
    • Views: 1,555
    11-30-2018, 09:34 PM Go to last post
  19. DIY attenuator

    Started by lowell, 10-30-2017 05:01 PM
    2 Pages
    1 2
    • Replies: 37
    • Views: 2,303
    11-29-2018, 10:33 PM Go to last post

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