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Threads 169 to 196 of 3242

Forum: Theory & Design

  1. Top Boost Single Ended

    Started by leadfootdriver, 12-10-2012 12:18 AM
    • Replies: 20
    • Views: 615
    leadfootdriver
    12-13-2012, 12:04 AM Go to last post

  2. Cat Follow & Gain

    Started by trem, 12-12-2012 03:16 AM
    • Replies: 5
    • Views: 199
    Chuck H
    12-12-2012, 06:18 AM Go to last post

  3. Parallel 12AX7 vs. EF86 (matchless clone design)

    Started by elpops, 12-03-2012 06:16 PM
    1 Attachment(s)
    • Replies: 6
    • Views: 579
    jazbo8
    12-12-2012, 03:01 AM Go to last post

  4. Question Cifte 12AU7 Tubes

    Started by Hella1hella, 12-11-2012 02:59 AM
    12au7, 12ax7, cifte, lil night train, nos, tubes
    • Replies: 3
    • Views: 287
    kleuck
    12-11-2012, 08:57 AM Go to last post

  5. when measuring a SF champ cathode bias ?

    Started by catnine, 12-10-2012 08:34 PM
    • Replies: 9
    • Views: 259
    Enzo
    12-11-2012, 05:04 AM Go to last post

  6. What is the meaning of max dc ma ratings on single ended output transformers?

    Started by Austin, 11-27-2012 02:20 AM
    • Replies: 12
    • Views: 502
    Austin
    12-11-2012, 01:52 AM Go to last post

  7. advantage of using a cap can?

    Started by Bluefinger, 12-06-2012 02:58 PM
    • Replies: 10
    • Views: 354
    Enzo
    12-11-2012, 12:41 AM Go to last post

  8. A Handy Cheat Sheet - gain stages

    Started by Gingertube, 12-06-2012 05:56 AM
    2 Attachment(s)
    • Replies: 3
    • Views: 387
    overtone
    12-09-2012, 10:28 PM Go to last post

  9. Now another question on the sound of a SF champ

    Started by catnine, 12-07-2012 01:13 AM
    • Replies: 13
    • Views: 323
    kleuck
    12-09-2012, 10:16 PM Go to last post

  10. speaker jack shorting or not?

    Started by Bluefinger, 11-30-2012 01:35 PM
    2 Pages •
    1 2
    4 Attachment(s)
    • Replies: 43
    • Views: 1,157
    Steve Conner
    12-09-2012, 11:50 AM Go to last post

  11. Tube Tone

    Started by trem, 12-02-2012 05:01 AM
    2 Pages •
    1 2
    • Replies: 39
    • Views: 959
    Chuck H
    12-08-2012, 05:53 AM Go to last post

  12. What would happen if you connected screen grids to constant current source?

    Started by Austin, 12-01-2012 10:32 PM
    1 Attachment(s)
    • Replies: 10
    • Views: 423
    Merlinb
    12-06-2012, 02:00 PM Go to last post

  13. MY builds voltages ?

    Started by catnine, 12-03-2012 01:10 AM
    • Replies: 9
    • Views: 313
    Enzo
    12-06-2012, 02:40 AM Go to last post

  14. Approximate AC to DC capacitor voltage rating equivalence? Other ideas?

    Started by jmaf, 12-05-2012 11:56 AM
    • Replies: 2
    • Views: 234
    jmaf
    12-05-2012, 01:09 PM Go to last post

  15. Why do some tube amps produce better pinch harmonics than others?

    Started by jl2556, 12-01-2012 04:34 PM
    • Replies: 9
    • Views: 473
    jl2556
    12-04-2012, 02:57 PM Go to last post

  16. I added diodes between the rect tube in serier with the PT secondary HT leads ?

    Started by catnine, 12-01-2012 11:22 PM
    • Replies: 7
    • Views: 291
    R.G.
    12-03-2012, 01:12 AM Go to last post

  17. Speaker impedance choice

    Started by Bluefinger, 11-30-2012 01:29 PM
    • Replies: 8
    • Views: 325
    Chuck H
    12-03-2012, 12:15 AM Go to last post

  18. current source on Schmitt

    Started by woodyc, 11-28-2012 10:14 PM
    3 Attachment(s)
    • Replies: 14
    • Views: 465
    Merlinb
    12-01-2012, 10:25 AM Go to last post

  19. Input jack grounding

    Started by EFK, 03-14-2010 04:28 PM
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 46
    • Views: 4,314
    raiken
    11-29-2012, 08:04 PM Go to last post

  20. Now, take a look at this..

    Started by nickb, 11-28-2012 05:47 PM
    1 Attachment(s)
    • Replies: 7
    • Views: 318
    nickb
    11-29-2012, 03:42 AM Go to last post

  21. Old Dual-Pro type dual OT

    Started by EFK, 11-26-2012 01:37 AM
    • Replies: 3
    • Views: 204
    EFK
    11-28-2012, 02:14 PM Go to last post

  22. Tube Rectified Amps: Standby via Switch on Rectifier Heater - Good Idea?

    Started by pdf64, 09-25-2012 02:32 PM
    2 Pages •
    1 2
    • Replies: 69
    • Views: 1,953
    catnine
    11-27-2012, 04:40 AM Go to last post

  23. I have a question on a build I did a while back

    Started by catnine, 11-26-2012 04:36 AM
    • Replies: 3
    • Views: 300
    catnine
    11-26-2012, 09:08 PM Go to last post

  24. Fixed bias theory

    Started by paggerman, 11-06-2012 12:35 PM
    3 Attachment(s)
    • Replies: 24
    • Views: 843
    kleuck
    11-26-2012, 12:59 PM Go to last post

  25. 45v to 5v voltage regulation

    Started by chunkitup, 11-21-2012 05:10 PM
    2 Attachment(s)
    • Replies: 12
    • Views: 466
    Sowhat
    11-22-2012, 08:03 PM Go to last post

  26. Ground scheme Q

    Started by Chuck H, 11-21-2012 05:11 AM
    • Replies: 14
    • Views: 410
    Chuck H
    11-22-2012, 07:15 PM Go to last post

  27. Anyone remember this???

    Started by Sowhat, 11-21-2012 06:49 AM
    1 Attachment(s)
    • Replies: 10
    • Views: 377
    R.G.
    11-22-2012, 06:23 AM Go to last post

  28. high side current monitoring

    Started by NateS, 11-14-2012 05:30 AM
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 40
    • Views: 1,154
    R.G.
    11-21-2012, 10:31 PM Go to last post
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