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Homemade 4w T3 tubes on test The furthest blackened one has too low argon pressure because the pressure gauge failed during the making of it, the bearest one is correctly filled at 8mbar of argon with veryically orientated 36w t8 cathodes. Both tubes are natural colour. Lets see how long they last

Homemade 4w T3 tubes on test

The furthest blackened one has too low argon pressure because the pressure gauge failed during the making of it, the bearest one is correctly filled at 8mbar of argon with veryically orientated 36w t8 cathodes. Both tubes are natural colour. Lets see how long they last

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Filename:50837.jpg
Album name:eclipsislamps / Cold cathode and other special lamps
Filesize:2337 KiB
Date added:12 Apr, 2026
Dimensions:2729 x 2048 pixels
Displayed:46 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=24481
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Danny   [12 Apr, 2026 at 11:33 PM]
That’s wore up like spiral CFLs
dor123   [13 Apr, 2026 at 04:28 AM]
Why too low argon pressure caused this end blackening?
FrontSideBus   [13 Apr, 2026 at 08:21 AM]
Interesting!

Comment 1 to 3 of 3
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