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Old 10-10-2022, 01:14 AM
AlekZ AlekZ is offline
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Magic eye tube rebuilding

I have been wondering for a long time where to put the description about the rebuilding of the magic eye tube. After reflection, I decided that I would put in this section, at most the moderator will move elsewhere.
From the original magic eye, I only use the screen, clean it, and apply a new phosphor. The bulb, electrodes, cathode, zero grid and getter are new. For now, I gave up installing the control triode inside the lamp. This function is performed by a small mosfet mounted in a socket.
Attached Images
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File Type: jpg IMG_5277.jpg (37.5 KB, 60 views)
File Type: jpg lampa zatopiona.jpg (34.1 KB, 46 views)
File Type: jpg lampy gotowe.jpg (56.4 KB, 59 views)
File Type: jpg oko gotowe 2.jpg (135.3 KB, 75 views)
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  #2  
Old 10-10-2022, 12:20 PM
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Electronic M Electronic M is offline
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That's pretty cool. If I were in your shoes I'd be tempted to phosphor it 3 different colors (green, yellow and red) along the indication scale in order of increasing input on the tube...
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Old 10-10-2022, 12:58 PM
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init4fun init4fun is offline
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Cool ! Now all ya gotta do is make reproductions of the Zenith 6T5, and then watch the bushels of money come rolling in.....
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Old 10-10-2022, 01:14 PM
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Electronic M Electronic M is offline
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Even the 6U5/6E5 can be $40+ tubes in some places as NOS dries up.
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Old 10-11-2022, 12:34 PM
AlekZ AlekZ is offline
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I would have to have at least one bad 6T5 to see exactly its design.
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Old 10-11-2022, 03:42 PM
trinescope trinescope is offline
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I figured this would be a next step from CRT rebuilding. If it's possible to recoat the cathode and re-phosphor the target it should be doable. I believe the 6-pin types use a P1 phosphor, and the later 9-pin tubes probably the P31 phosphor, at least that's what I see based on the colors.
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Old 10-13-2022, 11:17 PM
Titan1a Titan1a is offline
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It's too bad an LED variation of a 6T5 or 6U5 can't be fabricated.
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  #8  
Old 10-14-2022, 02:52 AM
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jhalphen jhalphen is offline
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Hi to all,
Hi Titan 1a,

Have a look at this color LCD magic eye substitute.
Choice of colors, displays frequency & B+ voltage, if desired.
No affiliation.

https://www.radioelec.com/en/magic-e...4_384-834.html

See it working here:
https://drive.google.com/file/d/1-3-...m5I9mOdZk/view

Best Regards
jhalphen
Paris/France

Last edited by jhalphen; 10-14-2022 at 03:07 AM.
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Old 11-12-2022, 10:48 PM
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Tube TV Tube TV is offline
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Wow that's impressive. I never thought to rebuid one.
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Old 04-16-2023, 12:47 PM
n8nagel n8nagel is offline
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this is crazy. you may want to post over at Audiokarma, I bet people there would be interested. I myself have a stereo receiver (1961 Pilot 654) with a "Magic Eye" tube for a tuning meter.
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  #11  
Old 02-18-2024, 05:35 PM
AlekZ AlekZ is offline
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Thank you . Here I talk a little about my magic eye tubes. Since this is in Polish and you may not want to listen, scroll to the next link.

https://www.youtube.com/watch?v=7epxTy-p32k&t=1065s

Maybe this three-color lamp will be a bit crazier

https://www.youtube.com/watch?v=7epxTy-p32k&t=1243s
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