Subject Started by Replies Views Last post
What are these tubes for? rafaf777 1 672 May 06, 2024, 03:18:09 AM
by Laurens
Atomic Spectra Database rjluna2 0 1504 November 03, 2021, 04:38:31 PM
by rjluna2
Thorn Merthyr factory codes? SouthWalesSOX 2 1335 May 03, 2023, 03:34:41 PM
by AngryHorse
Who knows datecode of these fluorescent lamps? The Lightman 5 2865 December 12, 2022, 07:09:23 PM
by James
Westinghouse T8/T12Fluorescent - 1960s/70s - compiled from public domain data TL8W 2 2866 January 07, 2024, 08:54:50 PM
by damon1369
Appeal for field info TL8W 1 1424 February 19, 2023, 05:52:52 PM
by TL8W
who knows date code of this Tungsram HgLS 250? valirex 1 1815 November 21, 2021, 05:39:58 PM
by James
Radium SOX date and age waterbug 1 1982 February 19, 2022, 09:31:05 AM
by Danny
Date Codes? « 1 2 » wattMaster 20 11039 February 11, 2017, 04:46:57 PM
by James
Japanese fluorescent lighting specifications and history PDF WorldwideHIDCollectorUSA 1 820 March 11, 2024, 05:18:53 AM
by WorldwideHIDCollectorUSA
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