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Threads 31 to 60 of 89

Forum: Tubes and Retro

Ideas and designs keeping the classic electronics alive.

  1. Closed: Tubes, Retro and Discrete Components Forum

    Started by schmitt trigger, 19th June 2015 16:23
    • Replies: 0
    • Views: 6,634
    19th June 2015, 16:23 Go to last post
  2. Closed: bsc25 0299d equivalent

    Started by eagle1109, 11th June 2016 20:37
    • Replies: 1
    • Views: 6,458
    8th July 2016, 00:51 Go to last post
  3. Closed: Insulating glove from tube amp building

    Started by sabahan, 11th May 2016 08:27
    • Replies: 3
    • Views: 6,423
    12th May 2016, 06:17 Go to last post
  4. Closed: PL504 instead of 6dq6 in transmitter

    Started by neazoi, 25th October 2016 09:35
    • Replies: 2
    • Views: 6,396
    25th October 2016, 10:29 Go to last post
  5. Closed: How CRT screen work?

    Started by RITESH KAKKAR, 9th June 2016 09:28
    • Replies: 2
    • Views: 6,250
    9th June 2016, 19:27 Go to last post
  6. Closed: Tektronix 545 oscilloscope

    Started by schmitt trigger, 19th February 2016 03:08
    • Replies: 2
    • Views: 6,231
    19th February 2016, 20:03 Go to last post
  7. Closed: What is this in CRT Vacuum tube?

    Started by RETGT, 3rd December 2016 11:17
    • Replies: 3
    • Views: 6,227
    4th December 2016, 18:08 Go to last post
  8. Closed: The first 8-bit microprocessor, Intel 8008 (i8008)

    Started by kak111, 24th June 2011 16:04
    • Replies: 0
    • Views: 6,222
    24th June 2011, 16:04 Go to last post
  9. Closed: PCL86 Tube substitution

    Started by PgrAm, 11th March 2014 02:27
    • Replies: 6
    • Views: 6,018
    12th March 2014, 18:26 Go to last post
  10. Closed: Looking for RCA 225807 CRT datasheet and aplication circuit

    Started by TomWJT, 20th February 2017 17:46
    • Replies: 1
    • Views: 5,967
    22nd February 2017, 14:41 Go to last post
  11. Closed: Schematic wanted - Oatley Electronics K055 6J6 valve preamp!

    Started by anzic, 20th April 2010 01:29
    • Replies: 8
    • Views: 5,926
    14th December 2010, 02:07 Go to last post
  12. Closed: Tube with low filament current??

    Started by neazoi, 22nd July 2010 14:30
    • Replies: 7
    • Views: 5,576
    6th November 2010, 23:47 Go to last post
  13. Closed: Help Needed to repair a CRT + pictures and info about the problem.

    Started by siXence, 4th March 2019 03:48
    2 Pages
    1 2
    • Replies: 22
    • Views: 5,467
    24th March 2019, 18:16 Go to last post
  14. [SOLVED]Closed: Power Supply For Cold Cathode Crookes Tube

    Started by resurgence2012, 11th August 2013 20:16
    • Replies: 9
    • Views: 5,389
    26th August 2013, 16:41 Go to last post
  15. Closed: tube square wave generator

    Started by analognow, 5th December 2009 00:46
    • Replies: 4
    • Views: 5,341
    14th April 2011, 20:18 Go to last post
  16. Closed: Nostalgia thread, did you work with Selenium rectifiers?

    Started by schmitt trigger, 11th October 2018 23:28
    • Replies: 6
    • Views: 5,280
    12th October 2018, 17:10 Go to last post
  17. Closed: Old russian prescaler chips 193IE1 and 193IE4

    Started by RoGeorge, 14th September 2012 11:01
    • Replies: 6
    • Views: 5,166
    6th September 2013, 21:54 Go to last post
  18. Closed: Best use of old TV set

    Started by bgpavan, 19th July 2012 04:51
    • Replies: 6
    • Views: 5,068
    18th October 2013, 14:41 Go to last post
  19. Closed: About Radar technology in 40th century

    Started by kak111, 9th April 2012 14:43
    • Replies: 7
    • Views: 4,822
    5th October 2013, 14:42 Go to last post
  20. Closed: Narva D2E/1 Spectral Lamp

    Started by marian11, 6th February 2013 01:46
    • Replies: 1
    • Views: 4,699
    7th February 2013, 11:56 Go to last post
  21. Closed: Black gate vs Elna Silmic vs . . ?

    Started by thebadtall, 31st May 2012 18:35
    • Replies: 1
    • Views: 4,625
    31st May 2012, 18:45 Go to last post
  22. Closed: Valve test, final year project?

    Started by Mickpc, 30th October 2013 09:39
    • Replies: 4
    • Views: 4,423
    18th July 2014, 14:34 Go to last post
  23. Closed: Incandescents to LED Conversion and Problem

    Started by jcjc, 9th February 2013 21:02
    • Replies: 10
    • Views: 4,352
    10th February 2014, 06:58 Go to last post
  24. Closed: What type of resistor is this?

    Started by Coconuttopdrop, 6th December 2012 13:25
    • Replies: 2
    • Views: 4,296
    23rd October 2013, 20:34 Go to last post
  25. Closed: Replacing tubes with mosfets

    Started by JIMHANDLEY, 8th January 2011 19:58
    • Replies: 6
    • Views: 4,267
    14th April 2011, 20:16 Go to last post
  26. Closed: Tubes & Ge Transistors

    Started by oldskool, 11th July 2012 13:05
    • Replies: 5
    • Views: 4,242
    18th April 2013, 16:38 Go to last post
  27. Closed: New Vacuum Tube Amp Blog

    Started by syberraith, 2nd July 2012 13:59
    • Replies: 1
    • Views: 4,238
    10th April 2013, 23:01 Go to last post
  28. Closed: How to contact tube manufacturers?

    Started by htg, 30th July 2010 22:30
    • Replies: 9
    • Views: 4,210
    22nd December 2011, 17:33 Go to last post
  29. Tube filaments on 230v? What do I need to know?

    Started by neazoi, 13th May 2019 23:36
    2 Pages
    1 2
    • Replies: 22
    • Views: 4,175
    31st July 2019, 17:13 Go to last post