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Forum: Theory & Design

  1. Sticky Thread Sticky: making sure I understand OT secondary ground

    Started by dmartn149, 08-31-2019 10:08 PM
    • Replies: 7
    • Views: 761
    09-02-2019, 07:06 AM Go to last post
    • Replies: 19
    • Views: 915
    Today, 04:00 PM Go to last post
  1. Peavey MX VTX Series Amp - Output Section

    Started by TomCarlos, Yesterday 06:37 PM
    • Replies: 6
    • Views: 99
    Today, 03:24 PM Go to last post
  2. 2-way speaker crossover design

    Started by m1989jmp, 10-26-2019 12:17 PM
    • Replies: 8
    • Views: 285
    Yesterday, 10:32 AM Go to last post
  3. VHT/Fryette power amps

    Started by kostic2000, 11-15-2019 11:49 AM
    • Replies: 8
    • Views: 261
    11-15-2019, 10:47 PM Go to last post
    • Replies: 11
    • Views: 405
    11-08-2019, 01:22 AM Go to last post
  4. Transformers

    Started by vintagekiki, 07-20-2018 11:34 PM
    • Replies: 8
    • Views: 1,218
    11-07-2019, 05:29 AM Go to last post
  5. What is one KT66 doing in a EL34 amp?

    Started by Randall, 11-01-2019 01:20 AM
    • Replies: 26
    • Views: 494
    11-02-2019, 12:46 AM Go to last post
    • Replies: 8
    • Views: 293
    11-01-2019, 03:52 AM Go to last post
    • Replies: 4
    • Views: 217
    10-31-2019, 03:35 PM Go to last post
    • Replies: 7
    • Views: 258
    10-31-2019, 11:23 AM Go to last post
    • Replies: 14
    • Views: 317
    10-31-2019, 11:18 AM Go to last post
    • Replies: 1
    • Views: 121
    10-28-2019, 06:04 PM Go to last post
  6. Zener Diodes to drop Heater Voltage ?

    Started by HaroldBrooks, 10-25-2019 08:22 PM
    • Replies: 31
    • Views: 513
    10-27-2019, 08:56 PM Go to last post
    • Replies: 8
    • Views: 289
    10-25-2019, 09:50 AM Go to last post
  7. 2 cascaded push pull

    Started by tepsamps, 10-22-2019 11:12 PM
    • Replies: 8
    • Views: 312
    10-24-2019, 04:34 AM Go to last post
  8. Doofus-Proofing Bias Supply

    Started by Justin Thomas, 10-11-2019 08:21 PM
    • Replies: 21
    • Views: 579
    10-22-2019, 10:02 PM Go to last post
  9. Swap out different Preamp Tube Type ?

    Started by HaroldBrooks, 09-26-2019 05:18 AM
    • Replies: 21
    • Views: 804
    10-22-2019, 05:14 PM Go to last post
  10. I want to build an amp selector (two amps a/b, one cab)

    Started by Gtr0, 10-05-2019 08:52 AM
    2 Pages
    1 2
    • Replies: 59
    • Views: 1,482
    10-21-2019, 05:34 AM Go to last post
  11. Weber 5F2H High power Princeton questions

    Started by garytube, 10-20-2019 06:29 PM
    • Replies: 2
    • Views: 162
    10-20-2019, 08:42 PM Go to last post
  12. Generic voltage divider question...

    Started by Gtr0, 10-17-2019 06:31 PM
    • Replies: 8
    • Views: 314
    10-18-2019, 03:18 PM Go to last post
  13. DC at both tone controls ?

    Started by HaroldBrooks, 10-13-2019 08:32 AM
    • Replies: 13
    • Views: 472
    10-15-2019, 02:17 AM Go to last post
  14. Current Ratings for amp and Power Transformers

    Started by Gtr0, 10-09-2019 09:30 AM
    • Replies: 20
    • Views: 603
    10-13-2019, 11:44 PM Go to last post
    • Replies: 27
    • Views: 735
    10-10-2019, 12:20 AM Go to last post
  15. Switchable Global NFB options

    Started by Gtr0, 10-04-2019 05:24 AM
    • Replies: 10
    • Views: 430
    10-06-2019, 11:55 AM Go to last post
  16. Fender 68 prri

    Started by clintronics, 09-19-2019 03:27 AM
    • Replies: 7
    • Views: 494
    09-30-2019, 05:08 PM Go to last post
    • Replies: 12
    • Views: 658
    09-29-2019, 07:45 AM Go to last post
  17. neg grid voltage limit

    Started by uneumann, 09-21-2019 10:21 PM
    • Replies: 7
    • Views: 427
    09-23-2019, 07:59 PM Go to last post
    • Replies: 15
    • Views: 755
    09-17-2019, 06:43 PM Go to last post

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