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Forum: Theory & Design

    • Replies: 12
    • Views: 1,346
    06-10-2018, 07:12 PM Go to last post
  1. Future of Tubes is TODAY

    Started by J M Fahey, 01-30-2015 12:37 PM
    3 Pages
    1 2 3
    • Replies: 103
    • Views: 7,901
    06-08-2018, 11:03 AM Go to last post
  2. Tweed Twin grid resistor question

    Started by Randall, 06-07-2018 10:22 PM
    • Replies: 1
    • Views: 358
    06-07-2018, 10:46 PM Go to last post
  3. Marshall 18W - Hum Master Pot

    Started by blackwhaleamp, 05-30-2018 08:32 AM
    • Replies: 6
    • Views: 657
    06-03-2018, 06:21 PM Go to last post
  4. Use an OT for higher Z

    Started by uneumann, 06-02-2018 05:17 PM
    • Replies: 7
    • Views: 678
    06-02-2018, 09:05 PM Go to last post
  5. Cathodyne PI Gain <1 On Load Line Chart?

    Started by robrob, 06-01-2018 06:30 PM
    cathodyne, gain, inverter, phase
    • Replies: 4
    • Views: 726
    06-01-2018, 09:22 PM Go to last post
  6. Power supply question

    Started by E biddy, 05-30-2018 10:08 PM
    • Replies: 12
    • Views: 866
    06-01-2018, 01:44 AM Go to last post
  7. Switching scheme

    Started by hylaphone, 05-29-2018 06:29 PM
    • Replies: 9
    • Views: 806
    05-31-2018, 02:42 AM Go to last post
  8. Same stage different stage

    Started by nsubulysses, 05-18-2018 09:22 PM
    • Replies: 7
    • Views: 721
    05-30-2018, 04:19 AM Go to last post
  9. Throwing metal film resistors in Fender amps

    Started by Wil, 01-09-2014 02:50 PM
    6 Pages
    1 2 3 ... 6
    • Replies: 209
    • Views: 24,413
    05-28-2018, 01:57 PM Go to last post
  10. another impedance question

    Started by Randall, 05-24-2018 12:04 AM
    • Replies: 22
    • Views: 983
    05-25-2018, 02:44 AM Go to last post
  11. Impedance for idiots????

    Started by Gtr0, 05-21-2018 12:13 PM
    • Replies: 15
    • Views: 1,162
    05-23-2018, 07:34 PM Go to last post
  12. Voltage rating on filter caps

    Started by Gtr0, 05-17-2018 12:59 PM
    2 Pages
    1 2
    • Replies: 48
    • Views: 2,464
    05-23-2018, 01:10 PM Go to last post
  13. AA720 Twin Reverb supply node values

    Started by Randall, 05-22-2018 02:39 AM
    • Replies: 2
    • Views: 426
    05-23-2018, 05:12 AM Go to last post
  14. screen and plate voltage

    Started by Randall, 05-19-2018 09:12 PM
    2 Pages
    1 2
    • Replies: 48
    • Views: 2,174
    05-23-2018, 01:21 AM Go to last post
  15. Chokes vs resistor

    Started by E biddy, 05-19-2018 02:19 AM
    • Replies: 22
    • Views: 1,153
    05-22-2018, 06:20 AM Go to last post
  16. Updated Champ amp heater circuit

    Started by Bob M., 05-14-2018 07:52 PM
    2 Pages
    1 2
    • Replies: 63
    • Views: 2,678
    05-21-2018, 06:35 PM Go to last post
  17. Question about voltage dop in a power supply

    Started by tpaairman, 01-12-2018 11:20 AM
    • Replies: 23
    • Views: 1,550
    05-20-2018, 11:48 AM Go to last post
  18. Doghouse

    Started by E biddy, 05-16-2018 02:39 AM
    • Replies: 6
    • Views: 586
    05-19-2018, 03:41 AM Go to last post
  19. Those damn neon signs!

    Started by olddawg, 05-07-2018 12:41 AM
    3 Pages
    1 2 3
    • Replies: 82
    • Views: 3,589
    05-19-2018, 12:24 AM Go to last post
  20. AB763 Filter Cap Orientation

    Started by bobloblaws, 05-18-2018 08:47 PM
    • Replies: 2
    • Views: 375
    05-18-2018, 09:39 PM Go to last post
  21. Push/Pull Pair Removal Theory & Questions

    Started by trip, 02-14-2018 09:03 PM
    5 Pages
    1 2 3 ... 5
    • Replies: 148
    • Views: 6,922
    05-15-2018, 11:11 AM Go to last post
    • Replies: 21
    • Views: 1,324
    05-14-2018, 11:55 PM Go to last post
  22. Tales of unexpected hum sources: Thomas Vox Amps

    Started by R.G., 01-04-2018 07:26 PM
    • Replies: 16
    • Views: 1,390
    05-14-2018, 08:50 PM Go to last post
  23. Combining preamp stage with output stage

    Started by E biddy, 05-13-2018 04:14 AM
    • Replies: 2
    • Views: 468
    05-14-2018, 06:39 AM Go to last post
  24. Why does this amp sound so good?

    Started by wizard333, 09-16-2016 04:12 AM
    2 Pages
    1 2
    • Replies: 59
    • Views: 5,546
    05-14-2018, 06:31 AM Go to last post
  25. Adding Reverb to Marshall Replica TMB 18W

    Started by blackwhaleamp, 05-03-2018 10:01 AM
    • Replies: 16
    • Views: 937
    05-08-2018, 02:06 PM Go to last post
  26. Brown Pro tremolo circuit

    Started by Randall, 05-05-2018 03:07 AM
    • Replies: 3
    • Views: 437
    05-05-2018, 08:36 PM Go to last post

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