 Last comments - User galleries
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Soon-to-be memory laneMax08/12/25 at 09:29Max: We certainly are living through a technological tr...
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Sodium resistanceMax08/12/25 at 09:25Max: Railway yards can look good sometimes... who would...
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A bucolic strollMax08/12/25 at 09:24Max: Some city councils care more about those things th...
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Genneper watermolenMax08/12/25 at 09:22Max: maybe they're there in his paintings and we j...
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Sylvania BA 575/2 DE BriteArc LampRia08/12/25 at 09:21Max: A 700 W HPM ballast should have a right impedance ...
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Soon-to-be memory laneMax07/12/25 at 17:03Sammi: Indeed we do. 
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Genneper watermolenMax07/12/25 at 16:42Sammi: Or even SOX...  
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Sodium resistanceMax07/12/25 at 16:40Sammi: WOW.! 
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Sylvania BA 575/2 DE BriteArc LampRia07/12/25 at 15:38Ria: Hmmm, I'll think about it. What would you sug...
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Sodium resistanceMax07/12/25 at 15:36Ria: Always loved railways, spent 15 years working for ...
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Genneper watermolenMax07/12/25 at 15:35Ria: Oh wow, I can just imagine a van Gogh painting wit...
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A bucolic strollMax07/12/25 at 15:34Ria: It's amazing, I just wish we had something si...
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Soon-to-be memory laneMax07/12/25 at 15:33Ria: Sadly this is happening everywhere now  ...
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Spectral lines Multi-vaporTuopeek07/12/25 at 06:54Max: I believe you. I use a combination of 100 W mercur...
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Spectral lines Multi-vaporTuopeek06/12/25 at 12:10Tuopeek: Only on occasion. It's a cheerful warming lig...
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1961 Philips SOI 60WMax06/12/25 at 06:24Max: It's always good to take old lamps out of the...
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Spectral lines Multi-vaporTuopeek06/12/25 at 06:16Max: That's a fortunate accident indeed. Are you a...
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Sylvania BA 575/2 DE BriteArc LampRia06/12/25 at 06:12Max: You should give it a shot still, it's always ...
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1993 Philips C1500/ED37Max06/12/25 at 06:03Max: Many different lamps were built and tested at Phil...
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Mid-1960s Philips Spectraal RbIIMax06/12/25 at 05:59Max: I agree, the rubidium discharge lamp is an interes...
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1961 Philips SOI 60WMax05/12/25 at 21:42Ria: Wonderful old lamp, don't have many SOI ones,...
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Spectral lines Multi-vaporTuopeek05/12/25 at 17:29Tuopeek: Thanks Max, perhaps a fortunate accident, as it ha...
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SON under SOXTuopeek05/12/25 at 11:28Tuopeek: I bought an Iwasaki NHT150SDX some time as it also...
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1961 Philips SOI 60WMax05/12/25 at 11:18Tuopeek: Very clean example of the SOI lamp, as usual Max. ...
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Sylvania BA 575/2 DE BriteArc LampRia05/12/25 at 01:05Ria: Thanks, I think it'll stay a display lamp, th...
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Self-ballasted S450BT37 during operationMax04/12/25 at 23:47Max: That S450BT37 certainly has a very nice design and...
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Spectral lines Multi-vaporTuopeek04/12/25 at 23:41Max: Nice shot, and the spectrum insert is a very nice ...
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Black light comparisonTuopeek04/12/25 at 23:35Max: Thank you for posting such a nice comparison. The ...
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SON under SOXTuopeek04/12/25 at 23:30Max: Nice experiment! The sodium vapor in HPS lamps has...
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Sylvania BA 575/2 DE BriteArc LampRia04/12/25 at 23:20Max: With an arc gap of 7 mm, it is more akin to HMIs w...
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