pair of well hammered brass capped philips 5 foot 80 watt tubes, dated from 1964

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Filename:	DSC08466.JPG
Album name:	lampy / Rare T12 tubes
Filesize:	2570 KiB
Date added:	12 Sep, 2015
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URL:	http://80.229.24.59:9232/gallery/displayimage.php?pid=810
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Comment 1 to 9 of 9

Page: 1

Danny

[12 Sep, 2015 at 10:50 PM]

Wonder what causes them to go blotchy like this?

lampy

[12 Sep, 2015 at 10:57 PM]

i dont know, i have several of these, all reclaimed from a derelict shopping centre, these had not been used in over 25 years maybe longer

Danny

[12 Sep, 2015 at 10:58 PM]

Good old tubes eh, these seem common at my local tip and I always snatch them when I see them

Kev

[12 Sep, 2015 at 11:26 PM]

There are a lot of die hard BLI fans out there but I think in all honesty these were better tubes FACT the philips tubes all the way up to 8 foot used to go like this! Not anymore though!

lampy

[13 Sep, 2015 at 12:13 AM]

what causes the blochy patches all over the tubes? they look shit lit up, well dim also

Funkybulb

[13 Oct, 2015 at 01:50 PM]

These blotchy tubes are very common in Philips 34 watt lamps in USA. It when lamp starts up and the sputter burns the phosphor creating blotches.

Kev

[13 Oct, 2015 at 06:34 PM]

What fitting is this Phil?

Andy

[13 Oct, 2015 at 06:37 PM]

This looks like a twin Superslim.

XmasLightGuy

[14 Oct, 2015 at 02:12 AM]

I've seen spotty-ness like that on 34 watt lamps...I've also seen the cause: on startup sometimes (especially if its slow in starting) ther'll be little 'sparkles' of light jumping around in the end... Really don't know how to explain it other than that.
Note: that's on rapid-start...I can't see the same thing happening on switch-start. Is this fitting quickstart or SRS by chance?

Comment 1 to 9 of 9

Page: 1