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Last comments - Thermal discharge lamps
Philips_SON-HC_220W_-_B_2000.jpg
 2000 Philips SON-HC 220WMax28/06/26 at 11:33Max: C refers to the clear bulb indeed. The light outpu...
Philips_SON-HC_220W_-_B_2000.jpg
 2000 Philips SON-HC 220WMax28/06/26 at 10:51Tuopeek: I presume the C in SON-HC is for Clear. Good to se...
Philips_LL93146E_HgCdZn_-_NL_1972_a_m.jpg
 1972 Philips LL93146E (Hg Cd Zn, 66 W)Max24/05/26 at 10:42Max: Cadmium was used as an additive in some general li...
Philips_LL93146E_HgCdZn_-_NL_1972_a_m.jpg
 1972 Philips LL93146E (Hg Cd Zn, 66 W)Max10/05/26 at 18:46Tuopeek: Haven't seen these spectral lamps with a fuse...
Philips_LL93146E_HgCdZn_-_NL_1972_a_m.jpg
 1972 Philips LL93146E (Hg Cd Zn, 66 W)Max10/05/26 at 18:15Ria: Fascinating, we have a set of the more common Phil...
Philips_LL93146E_HgCdZn_-_NL_1972_a_m.jpg
 1972 Philips LL93146E (Hg Cd Zn, 66 W)Max10/05/26 at 17:48Drew: @Sammi
Yes I am aware this particular one wasn�...
Philips_LL93146E_HgCdZn_-_NL_1972_a_m.jpg
 1972 Philips LL93146E (Hg Cd Zn, 66 W)Max10/05/26 at 17:06Sammi: It wasn't used for general lighting but rathe...
Philips_LL93146E_HgCdZn_-_NL_1972_a_m.jpg
 1972 Philips LL93146E (Hg Cd Zn, 66 W)Max10/05/26 at 15:30Drew: Very cool lamp! I have never seen anything like th...
Osram_HQI-TS_250W21WDL_-_D_2007.jpg
 2007 Osram HQI-TS 250W/WDLMax08/01/26 at 12:38Max: You're right, it's not only the electrod...
Osram_HQI-TS_250W21WDL_-_D_2007.jpg
 2007 Osram HQI-TS 250W/WDLMax07/01/26 at 19:40Tuopeek: I have an Osram HQI-TS 250W/NDL in my collection a...
Mazda_MAF_700W_RV_-_FR_1972_a.jpg
 1972 Mazda MAF 700W RVMax29/12/25 at 10:15Max: I saw quite a few of those in the wild back then, ...
Mazda_MAF_700W_RV_-_FR_1972_a.jpg
 1972 Mazda MAF 700W RVMax28/12/25 at 21:26Tuopeek: Never found a 700W mercury in the wild, they seeme...
Philips_C150021ED37_-_USA_1993.jpg
 1993 Philips C1500/ED37Max06/12/25 at 06:03Max: Many different lamps were built and tested at Phil...
Philips_C150021ED37_-_USA_1993.jpg
 1993 Philips C1500/ED37Max19/11/25 at 03:40347vPowerlite: Interesting! I didn't know Philips experiment...
Philips_C150021ED37_-_USA_1993.jpg
 1993 Philips C1500/ED37Max13/11/25 at 11:12Max: Thank you, Ria. Yes, the C1000/ED37 was available ...
Philips_C150021ED37_-_USA_1993.jpg
 1993 Philips C1500/ED37Max12/11/25 at 21:56Ria: Fascinating, thanks Max. I've never seen a la...
Tesla_RVY_250W_-_CZK_1969.jpg
 1969 Tesla RVY 250WMax05/10/25 at 10:02Max: Thank you, Ria, I'm happy to be here Smile

RV...
Tesla_RVY_250W_-_CZK_1969.jpg
 1969 Tesla RVY 250WMax04/10/25 at 13:54Ria: Wow..! Want one..! Mr. Green
You do keep coming...
Philips_S1000_-_NL_1999.jpg
 1999 Philips S1000Max07/08/25 at 21:05Tuopeek: Thanks for the pointers. This gives me some ideas ...
Philips_S1000_-_NL_1999.jpg
 1999 Philips S1000Max07/08/25 at 16:50Max: Nice experiment! You definitely want to increase t...
Philips_S1000_-_NL_1999.jpg
 1999 Philips S1000Max07/08/25 at 16:09Tuopeek: I need to have another go with this. I had tried b...
Philips_S1000_-_NL_1999.jpg
 1999 Philips S1000Max07/08/25 at 06:36Max: Those lamps were certainly not available at your l...
Philips_S1000_-_NL_1999.jpg
 1999 Philips S1000Max06/08/25 at 01:22Ria: It's certainly one I've never heard of b...
Philips_S1000_-_NL_1999.jpg
 1999 Philips S1000Max05/08/25 at 10:54Tuopeek: This is a fascinating lamp, and thanks for the inf...
CEW_DAK5021WFL_-_JP_1993.jpg
 1993 CEW DAK50/WFLMax04/05/25 at 09:54Max: Yes, that's definitely not a usual "ligh...
CEW_DAK5021WFL_-_JP_1993.jpg
 1993 CEW DAK50/WFLMax03/05/25 at 14:15AgentHalogen_87: Wow that is a strange one! Interesting to see that...
CEW_DAK5021WFL_-_JP_1993.jpg
 1993 CEW DAK50/WFLMax03/05/25 at 10:59Max: Thanks for the comments, this is an interesting la...
CEW_DAK5021WFL_-_JP_1993.jpg
 1993 CEW DAK50/WFLMax02/05/25 at 06:03Cobrahead: Nice lamp Max! I remember seeing these back in the...
CEW_DAK5021WFL_-_JP_1993.jpg
 1993 CEW DAK50/WFLMax02/05/25 at 00:26347vPowerlite: I've always found these retrofits interesting...
GE_Maza_A-H4_-_USA_1945_a.jpg
 1945 GE-Mazda A-H4Max28/01/25 at 17:32Ria: Thanks, Max. Every little helps, as a certain UK s...
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