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Forum: Tubes (Valves)

  1. Visual signs of a bad tube?

    Started by Axtman, 08-12-2018 03:09 AM
    • Replies: 3
    • Views: 1,197
    02-10-2019, 09:21 PM Go to last post
  2. 6SQ7? In a Gibson GA-20...

    Started by Justin Thomas, 10-03-2017 10:38 PM
    • Replies: 8
    • Views: 3,232
    02-08-2019, 05:17 AM Go to last post
  3. fender 5e3

    Started by mellowamoya, 11-30-2018 12:28 AM
    • Replies: 2
    • Views: 681
    11-30-2018, 10:35 AM Go to last post
  4. Tubes and sokets for sale

    Started by Yuriy, 11-12-2018 03:11 PM
    • Replies: 0
    • Views: 898
    11-12-2018, 03:11 PM Go to last post
  5. RCA 6V6 loose and making noise

    Started by Randall, 10-26-2018 12:56 AM
    • Replies: 6
    • Views: 792
    10-27-2018, 02:33 AM Go to last post
  6. JJ EL34 II

    Started by Mick Bailey, 05-13-2018 06:52 PM
    • Replies: 7
    • Views: 1,442
    10-02-2018, 09:14 PM Go to last post
    • Replies: 8
    • Views: 2,117
    08-22-2018, 05:49 AM Go to last post
  7. Tube rattle?

    Started by tubedood, 08-06-2018 11:21 PM
    • Replies: 3
    • Views: 519
    08-07-2018, 04:49 AM Go to last post
    • Replies: 9
    • Views: 1,259
    08-03-2018, 06:53 PM Go to last post
  8. 6L6GC or 5881?

    Started by Randall, 07-02-2018 03:27 AM
    • Replies: 15
    • Views: 1,375
    07-22-2018, 02:20 PM Go to last post
  9. telling unmarked preamp tubes apart

    Started by Randall, 06-30-2018 06:31 PM
    • Replies: 7
    • Views: 1,112
    07-01-2018, 05:34 PM Go to last post
  10. Original Sovtek 5881 (coin/wafer based)

    Started by Gtr0, 06-26-2018 02:23 PM
    • Replies: 5
    • Views: 1,019
    06-27-2018, 12:14 PM Go to last post
  11. KT55 Tubes

    Started by kpsta, 06-07-2018 08:23 PM
    • Replies: 1
    • Views: 752
    06-08-2018, 12:08 AM Go to last post
  12. Sovtek 6SL7

    Started by Mick Bailey, 03-19-2018 01:47 PM
    • Replies: 2
    • Views: 1,047
    04-01-2018, 09:24 AM Go to last post
  13. Modern 6550?

    Started by Randall, 03-22-2018 09:05 PM
    • Replies: 4
    • Views: 907
    03-23-2018, 05:49 PM Go to last post
  14. RCA JAN 83 rectifier tube flakes

    Started by Randall, 02-22-2018 06:58 AM
    • Replies: 9
    • Views: 1,490
    02-22-2018, 10:46 PM Go to last post
  15. Modern 5y3s

    Started by bluzmn, 12-23-2016 05:05 PM
    • Replies: 9
    • Views: 1,420
    02-03-2018, 09:07 PM Go to last post
  16. JJ6V6

    Started by uneumann, 12-30-2017 09:52 PM
    • Replies: 31
    • Views: 2,592
    01-10-2018, 06:36 AM Go to last post
  17. New TAD tube

    Started by nosaj, 01-09-2018 12:13 AM
    • Replies: 13
    • Views: 1,147
    01-09-2018, 11:53 PM Go to last post
  18. Getter flash spots changing over time

    Started by KRKozBassman, 11-29-2017 04:05 PM
    • Replies: 4
    • Views: 1,269
    12-29-2017, 05:34 AM Go to last post
  19. Sovtek EL84m tests poor in Orange valve tester??

    Started by 1ampman, 09-19-2017 12:13 AM
    • Replies: 9
    • Views: 1,709
    10-20-2017, 01:45 AM Go to last post
  20. 6ak6-tone-experience?

    Started by Chuck H, 10-06-2017 02:31 AM
    2 Pages
    1 2
    • Replies: 52
    • Views: 3,237
    10-16-2017, 01:59 AM Go to last post
  21. Marshall Branded Tubes

    Started by LesterPTelestrat, 10-09-2017 09:01 PM
    • Replies: 8
    • Views: 2,027
    10-12-2017, 06:55 PM Go to last post
  22. Ultra Linear Tap percentage

    Started by mpegjohn, 10-05-2017 01:11 PM
    • Replies: 2
    • Views: 1,055
    10-05-2017, 02:24 PM Go to last post
  23. Is a halo the sign of a bad tube?

    Started by Axtman, 09-04-2017 07:19 PM
    • Replies: 2
    • Views: 1,287
    09-05-2017, 11:26 AM Go to last post
    • Replies: 7
    • Views: 1,542
    08-10-2017, 07:24 AM Go to last post
    • Replies: 4
    • Views: 1,206
    08-04-2017, 10:14 AM Go to last post
  24. Anybody looked at tube perveance values?

    Started by Old Tele man, 12-03-2013 09:50 PM
    • Replies: 15
    • Views: 2,825
    07-27-2017, 02:39 AM Go to last post

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