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Lamp detailMax14/12/25 at 15:50Tuopeek: Your file name may have given a clue or two. Based...

Lamp detailMax14/12/25 at 15:26Max: You're getting there, but that's no UV l...

High Pressure sodium lamp Tuopeek14/12/25 at 15:26Max: Yes, take care of it, that's certainly not yo...

Lamp detailMax14/12/25 at 11:28Tuopeek: Oh, that’s a tricky one. Trying to workout the siz...

High Pressure sodium lamp Tuopeek14/12/25 at 11:23Tuopeek: Thanks again Max, that solves a mystery I haven�...

Lamp detailMax14/12/25 at 10:44Max: Nope, that's not it. It's a much smaller...

Lamp detailMax14/12/25 at 10:30AgentHalogen_87: Internal construction looks a bit like a linear so...

High Pressure sodium lamp Tuopeek13/12/25 at 23:33Max: No problem. I dug a little bit in the literature a...

High Pressure sodium lamp Tuopeek13/12/25 at 17:12Tuopeek: Thanks for the information Max. I guess it wasn�...

Mercury lampTuopeek12/12/25 at 08:17Max: At that time it was customary for Philips to fit t...

High Pressure sodium lamp Tuopeek12/12/25 at 08:08Max: And, more importantly, that's a deluxe HPS (2...

RLOD#27 (2020.06.05) 2012 GE 150PAR/FL/BMax10/12/25 at 07:40Max: You're welcome, Ria Smile

RLOD#27 (2020.06.05) 2012 GE 150PAR/FL/BMax09/12/25 at 19:42Ria: Thanks for the detailed explanation, Max :bulbman...

Sylvania BA 575/2 DE BriteArc LampRia08/12/25 at 18:10Ria: Thanks, I'll give it some thought.

Sylvania BA 575/2 DE BriteArc LampRia08/12/25 at 08:21Max: A 700 W HPM ballast should have a right impedance ...

Sylvania BA 575/2 DE BriteArc LampRia07/12/25 at 14:38Ria: Hmmm, I'll think about it. What would you sug...

Spectral lines Multi-vaporTuopeek07/12/25 at 05:54Max: I believe you. I use a combination of 100 W mercur...

Spectral lines Multi-vaporTuopeek06/12/25 at 11:10Tuopeek: Only on occasion. It's a cheerful warming lig...

1961 Philips SOI 60WMax06/12/25 at 05:24Max: It's always good to take old lamps out of the...

Spectral lines Multi-vaporTuopeek06/12/25 at 05:16Max: That's a fortunate accident indeed. Are you a...

Sylvania BA 575/2 DE BriteArc LampRia06/12/25 at 05:12Max: You should give it a shot still, it's always ...

1993 Philips C1500/ED37Max06/12/25 at 05:03Max: Many different lamps were built and tested at Phil...

Mid-1960s Philips Spectraal RbIIMax06/12/25 at 04:59Max: I agree, the rubidium discharge lamp is an interes...

1961 Philips SOI 60WMax05/12/25 at 20:42Ria: Wonderful old lamp, don't have many SOI ones,...

Spectral lines Multi-vaporTuopeek05/12/25 at 16:29Tuopeek: Thanks Max, perhaps a fortunate accident, as it ha...

SON under SOXTuopeek05/12/25 at 10:28Tuopeek: I bought an Iwasaki NHT150SDX some time as it also...

1961 Philips SOI 60WMax05/12/25 at 10:18Tuopeek: Very clean example of the SOI lamp, as usual Max. ...

Sylvania BA 575/2 DE BriteArc LampRia05/12/25 at 00:05Ria: Thanks, I think it'll stay a display lamp, th...

Self-ballasted S450BT37 during operationMax04/12/25 at 22:47Max: That S450BT37 certainly has a very nice design and...

Spectral lines Multi-vaporTuopeek04/12/25 at 22:41Max: Nice shot, and the spectrum insert is a very nice ...

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