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Soviet brandless NOS F40T12 DL with anode extensions (Click on image for more detailed look)

Soviet brandless NOS F40T12 DL with anode extensions (Click on image for more detailed look)

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Man, Freaking eye-floaties, messes with my vision, can't see what I'm typin . . .

So, I thought this tube was quiet an interesting specimen. It is a brandless soviet F40T12 DL fluorescent tube, but it has special cathodes. You know, when older tubes, when they were made with quality, they had their filament holding legs extended and wrapped around the filament to act as anode extensions, well, this tube has sorta-like anode extensions on the filament legs, you can see in the cathode pictures, they extend a little bit from the filament. I wonder what manufacturer used to make these tubes. It has unusual endcaps too. The filament is nice and thick, made with quality. This tube is also quet bright too, mainly, because a real generous dose of mercury. Would not want to brake it, would be quiet a mess. The mercury is all over the inner glass deposited as tiny balls. Nice tube, really, I think I have the same brandless tube in CW too. I think I remember where I got them, but I might be mixin' some memories, but I think I found two of these tubes (CW one included) on one of the dumpsters next to my third school and I took them with me home and therefore was late to school, but who cares, vintage NOS tubes are more worth than PE. They were in a dusty old original cardboard sleeves that fell apart as I brought them home, probably someone found them during the some cleansing of some space area and wanted to get rid of them. Really quet a rare sight with those anode extensions.

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Light Information

Light Information

Manufacturer:Unknown
Model Reference:LD-40
Lamp
Lamp Type:Fluorescent
Filament/Radiator Type:double coil
Base:G13 bipin
Shape/Finish:Tube
Service Life:approx 20k hours
Electrical
Wattage:40w
Voltage:220v
Optical
Lumen Output:Moderate
Lumen Efficacy:Moderate
Color Temperature:7500k
Color Rendering Index:Not bad but not good
Physical/Production
Factory Location:Russia, probably Smolensk
Fabrication Date:somewhere in the 80s probably
Application/Use:For outdoor/indoor lighting

File information

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Filename:Brandless soviet f40t12 with anode extensions.jpg
Album name:vytautas_lamps / fluorescent tubes T8/T12
Keywords:Lamps
File Size:280 KB
Date added:Feb 12, 2019
Dimensions:2464 x 1146 pixels
Displayed:36 times
Date Time:2019:02:12 22:14:05
DateTime Original:2019:02:12 21:58:55
Exposure Bias:0 EV
Exposure Time:2310/1000000 sec
FNumber:f 1.8
Flash:No Flash
Focal length:3.5 mm
ISO:89
Make:Blackview
Model:BV6000S
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