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Forum: Theory & Design

  1. Mystery Circuit of the Day #1

    Started by nickb, Yesterday 09:58 PM
    • Replies: 4
    • Views: 77
    Today, 12:28 AM Go to last post
  2. Hiwatt design question

    Started by catalin gramada, 10-21-2018 01:54 PM
    • Replies: 8
    • Views: 268
    Yesterday, 09:46 PM Go to last post
  3. Film Caps for Tube Amp Power Supplies

    Started by R.G., 10-20-2018 08:06 PM
    • Replies: 10
    • Views: 277
    Yesterday, 09:37 PM Go to last post
  4. Channel Switching Advice

    Started by Ninevolt, 10-20-2018 11:38 PM
    • Replies: 10
    • Views: 190
    Yesterday, 07:49 AM Go to last post
    • Replies: 34
    • Views: 586
    Yesterday, 07:30 AM Go to last post
  5. About amp "immediacy"

    Started by netfences, 10-06-2018 01:52 PM
    8 Pages
    1 2 3 ... 8
    • Replies: 255
    • Views: 4,624
    10-20-2018, 07:22 PM Go to last post
  6. MOSFET Dissipation (for Power Scaling / VVR)

    Started by mhuss, 06-05-2015 10:00 PM
    2 Pages
    1 2
    • Replies: 63
    • Views: 4,048
    10-18-2018, 07:09 PM Go to last post
  7. Question about Pentode reverb drive circuit

    Started by SoulFetish, 08-15-2018 02:36 AM
    3 Pages
    1 2 3
    • Replies: 86
    • Views: 2,379
    10-18-2018, 06:35 AM Go to last post
  8. Pulling two output tubes in a Tweed Twin

    Started by Randall, 10-05-2018 11:59 PM
    • Replies: 22
    • Views: 601
    10-16-2018, 02:51 PM Go to last post
  9. Hartke Model 3500 MOSFET power supply

    Started by Axtman, 10-12-2018 07:17 PM
    • Replies: 1
    • Views: 110
    10-13-2018, 12:59 AM Go to last post
  10. Powertube warmup..

    Started by leadfootdriver, 10-10-2018 09:31 PM
    • Replies: 7
    • Views: 218
    10-12-2018, 04:28 AM Go to last post
  11. dim bulb tester light bulb resistance

    Started by Randall, 10-08-2018 03:44 AM
    • Replies: 5
    • Views: 225
    10-09-2018, 02:29 PM Go to last post
  12. seires / parallel wattage question

    Started by Randall, 09-27-2018 10:53 PM
    2 Pages
    1 2
    • Replies: 40
    • Views: 869
    10-04-2018, 05:22 AM Go to last post
  13. Great tool but I need a little info!

    Started by tubedood, 10-02-2018 06:23 AM
    • Replies: 6
    • Views: 272
    10-02-2018, 11:02 PM Go to last post
  14. Tube/JFET hybrid cascode?

    Started by SoulFetish, 09-27-2018 07:40 AM
    • Replies: 2
    • Views: 227
    10-02-2018, 07:21 AM Go to last post
  15. Tube rectifier B+ differences

    Started by tubedood, 07-30-2018 04:21 PM
    • Replies: 34
    • Views: 1,222
    09-29-2018, 03:30 AM Go to last post
  16. How close to capacitor voltage rating?

    Started by Axtman, 09-07-2018 07:12 PM
    • Replies: 20
    • Views: 766
    09-28-2018, 05:58 PM Go to last post
    • Replies: 34
    • Views: 982
    09-28-2018, 08:56 AM Go to last post
    • Replies: 13
    • Views: 345
    09-26-2018, 11:31 AM Go to last post
  17. What does this thingy do?

    Started by Axtman, 09-25-2018 06:57 PM
    • Replies: 3
    • Views: 221
    09-25-2018, 11:42 PM Go to last post
  18. Another Power Transformer Question!

    Started by tubedood, 09-25-2018 09:01 PM
    • Replies: 3
    • Views: 188
    09-25-2018, 09:50 PM Go to last post
  19. Dagnall OT no wiring info

    Started by Randall, 09-24-2018 08:05 PM
    • Replies: 3
    • Views: 202
    09-24-2018, 09:28 PM Go to last post
  20. THD Univalve questions

    Started by mikepukmel, 09-20-2018 03:47 AM
    • Replies: 12
    • Views: 437
    09-20-2018, 08:51 PM Go to last post
    • Replies: 18
    • Views: 780
    09-19-2018, 09:10 PM Go to last post
  21. Couple other transformer questions

    Started by nsubulysses, 09-12-2018 06:25 PM
    • Replies: 8
    • Views: 417
    09-14-2018, 08:23 PM Go to last post
  22. Trust this transformer any more or less?

    Started by nsubulysses, 09-05-2018 05:29 PM
    • Replies: 27
    • Views: 1,030
    09-13-2018, 02:09 AM Go to last post
  23. Input jack lock?

    Started by Axtman, 09-12-2018 09:16 PM
    • Replies: 2
    • Views: 183
    09-13-2018, 12:04 AM Go to last post

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