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Date Codes on Lamptech Patrick 1 5686 June 24, 2020, 08:03:11 AM
by Rommie
Notice Regarding Posting of Date Code Specs Patrick 0 2910 June 20, 2020, 11:18:36 PM
by Patrick
Date Codes? « 1 2 » wattMaster 20 7795 February 11, 2017, 04:46:57 PM
by James
Radium SOX date and age waterbug 1 1621 February 19, 2022, 09:31:05 AM
by Danny
who knows date code of this Tungsram HgLS 250? valirex 1 1446 November 21, 2021, 05:39:58 PM
by James
Appeal for field info TL8W 1 700 February 19, 2023, 05:52:52 PM
by TL8W
Westinghouse T8/T12Fluorescent - 1960s/70s - compiled from public domain data TL8W 1 1928 May 09, 2022, 11:49:34 PM
by Bulbman256
Who knows datecode of these fluorescent lamps? The Lightman 5 1900 December 12, 2022, 07:09:23 PM
by James
Thorn Merthyr factory codes? SouthWalesSOX 2 529 May 03, 2023, 03:34:41 PM
by AngryHorse
Atomic Spectra Database rjluna2 0 1155 November 03, 2021, 04:38:31 PM
by rjluna2
Which lamp is older? RadiantMV 1 1127 May 30, 2022, 07:16:57 PM
by HPS_250
Date code for vintage GE ballast Preheat_Carson 4 332 July 08, 2023, 12:38:01 AM
by joseph_125
Does anyone have ANSI C78.40? (Mercury Lamp Specs) Mr. Orthosilicate 1 4409 September 23, 2020, 10:18:03 AM
by James
Date code on Philips ballasts Michael 0 919 October 22, 2022, 06:41:35 AM
by Michael
OV- 15 manufacturing date? Metal Halide Boy 3 2182 January 22, 2021, 05:20:59 AM
by LightsDelight
EYE date codes Mandolin Girl 3 1483 October 30, 2021, 08:28:19 PM
by joseph_125
How do I read date codes on Philips starters and American/HID lamps in general? Lamp_o_watcher 1 1046 November 03, 2022, 06:26:04 PM
by Rommie
can you guys teach me how to read date codes? Lamp_o_watcher 1 1113 August 21, 2022, 08:22:14 PM
by 108CAM
Color codes for USSR tubes Jovan 0 1768 April 19, 2021, 03:19:38 PM
by Jovan
Tesla Tež automotive catalogue (Serbian language) Jovan 2 1740 January 11, 2022, 11:50:55 AM
by Jovan
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