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GE_2500L_145W_-_USA_1972.jpg
1972 GE 2500L (6.6 A 147.2 W)Max03/03/26 at 01:29Ria: @Max - I think we're going to have to agree t...
2020-06-18_Sylvania_H38JA-10021N.jpg
RLOD#34 (2020.06.18) 1979 Sylvania H38JA-100/NMax03/03/26 at 01:27Ria: @Max - Not sure now, thinking about it..! Will hav...
2020-06-18_Sylvania_H38JA-10021N.jpg
RLOD#34 (2020.06.18) 1979 Sylvania H38JA-100/NMax02/03/26 at 23:52Tuopeek: Never saw a warm-white mercury lamp in the wild. I...
Flaming_arc.jpg
Flaming arcMax02/03/26 at 23:46Tuopeek: Good capture, I'm sure it's bright. I tr...
2020-06-18_Sylvania_H38JA-10021N.jpg
RLOD#34 (2020.06.18) 1979 Sylvania H38JA-100/NMax02/03/26 at 18:32Max: That would be nice if you indeed have that specifi...
tubeson_HVHF4.jpg
electrodeless tubesTuopeek02/03/26 at 18:29Max: Tuopeek - That discharge color is quite consistent...
GE_2500L_145W_-_USA_1972.jpg
1972 GE 2500L (6.6 A 147.2 W)Max02/03/26 at 18:25Max: I hear you about the horrible quality of some illu...
2020-06-18_Sylvania_H38JA-10021N.jpg
RLOD#34 (2020.06.18) 1979 Sylvania H38JA-100/NMax02/03/26 at 13:51Ria: Interesting, thanks Max. I have one of these somew...
GE_2500L_145W_-_USA_1972.jpg
1972 GE 2500L (6.6 A 147.2 W)Max02/03/26 at 02:05Ria: The problem with the erm.. "street lighting&q...
tubeson_HVHF4.jpg
electrodeless tubesTuopeek02/03/26 at 02:02Ria: Fascinating, well done Mark Bulb Man
GE_2500L_145W_-_USA_1972.jpg
1972 GE 2500L (6.6 A 147.2 W)Max01/03/26 at 21:37Tuopeek: I feel CCTV was the later driver for the whiter br...
tubeson_HVHF4.jpg
electrodeless tubesTuopeek01/03/26 at 21:31Tuopeek: Thanks, I think the tube with the powder retrieve...
GE_2500L_145W_-_USA_1972.jpg
1972 GE 2500L (6.6 A 147.2 W)Max01/03/26 at 21:03Max: Except for bicycle and dirt paths, we certainly ha...
tubeson_HVHF4.jpg
electrodeless tubesTuopeek01/03/26 at 20:53Max: Very nice and creative, well done! The capacitance...
GE_2500L_145W_-_USA_1972.jpg
1972 GE 2500L (6.6 A 147.2 W)Max28/02/26 at 01:07Ria: Ain't that the truth... Confused
GE_2500L_145W_-_USA_1972.jpg
1972 GE 2500L (6.6 A 147.2 W)Max27/02/26 at 19:42Sammi: And now we're back to the same level of illum...
crookes.jpg
Andrews Rapid Tuopeek24/02/26 at 22:01Tuopeek: Very observant Max, I hadn't actually spotted...
GE_2500L_145W_-_USA_1972.jpg
1972 GE 2500L (6.6 A 147.2 W)Max24/02/26 at 08:17Max: It's quite mind boggling that 600-lumen lamps...
SOX180.jpg
Osram 180w SOX Tuopeek24/02/26 at 08:07Max: Good question. I've not really paid attention...
RP-100H38-T10-WW-1_0-L1.jpg
Radiant H38-4AV/N/T10 (H38AV-100/N/T10) 100W Warm-White Tubular Mercury Vapor Lamp LitEric24/02/26 at 08:01Max: Sorry for the delay, I've been extremely busy...
RP-100H38-T10-WW-1_0.jpg
Radiant H38-4AV/N/T10 (H38AV-100/N/T10) 100W Warm-White Tubular Mercury Vapor LampEric24/02/26 at 07:59Max: Nice re-seeing that lamp. I certainly wouldn'...
Nafa_CoolBeam_100W_-_JP_l_90s.jpg
Early-1990s NAFA CoolBeam 100WMax24/02/26 at 07:56Max: The life of hot-cathode discharge lamps is strongl...
crookes.jpg
Andrews Rapid Tuopeek24/02/26 at 07:47Max: Your mishap certainly resulted in a spectacular ef...
half_coated_Hg.jpg
Spectral Demonstration LampTuopeek24/02/26 at 07:39Max: Nice lamp. Those half-coated fluorescent tubes are...
RP-100H38-T10-WW-1_0-L1.jpg
Radiant H38-4AV/N/T10 (H38AV-100/N/T10) 100W Warm-White Tubular Mercury Vapor Lamp LitEric20/02/26 at 18:21Sammi: He's only on at the weekends, so give him tim...
RP-100H38-T10-WW-1_0-L1.jpg
Radiant H38-4AV/N/T10 (H38AV-100/N/T10) 100W Warm-White Tubular Mercury Vapor Lamp LitEric18/02/26 at 19:42BT25: Yeah, he would...surprised he hasn't commente...
RP-100H38-T10-WW-1_0-L1.jpg
Radiant H38-4AV/N/T10 (H38AV-100/N/T10) 100W Warm-White Tubular Mercury Vapor Lamp LitEric18/02/26 at 16:48Sammi: I presume that's down to the type of phosphor...
RP-100H38-T10-WW-1_0-L1.jpg
Radiant H38-4AV/N/T10 (H38AV-100/N/T10) 100W Warm-White Tubular Mercury Vapor Lamp LitEric17/02/26 at 05:50BT25: The surprising part is that it ends up yellow at f...
RP-100H38-T10-WW-1_0.jpg
Radiant H38-4AV/N/T10 (H38AV-100/N/T10) 100W Warm-White Tubular Mercury Vapor LampEric17/02/26 at 05:48BT25: Yep, it's definitely unique. Cool
RP-100H38-T10-WW-1_0-L1.jpg
Radiant H38-4AV/N/T10 (H38AV-100/N/T10) 100W Warm-White Tubular Mercury Vapor Lamp LitEric16/02/26 at 20:35Ria: Bright light Cool
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