Westinghouse F48T12/CW/SHO 110W 4ft Very high output tube
some may recall that many years ago I got 3 of these from ebay from the US (before the global shipping program ruined everything!)

but I dont think I ever uploaded them here, so I figured I should do so while I had one out :) 

it is a bright (and hot running) bastard :) its a shame they never made these in triphosphor that would be truly blinding

its been many years since I last lit one, and am doing so in preparation for some other tubes arriving, to see how my constant current ballast setup is doing

these SHO/VHO tubes run at 1.5A and my setup gives me a fairly constant 1.65A so I think that should work nicely (im running 13.6Uf of capacitance in series with a 180W Sun tanning choke, its like a beefed up 125W 8ft circuit)

(it would be ideal for running a 200W SLI/H setup but I sadly dont have one of those in the collection! as they run at 1.6A)

the fluke multimeter is measuring lamp voltage

Westinghouse F48T12/CW/SHO 110W 4ft Very high output tube

some may recall that many years ago I got 3 of these from ebay from the US (before the global shipping program ruined everything!)

but I dont think I ever uploaded them here, so I figured I should do so while I had one out :)

it is a bright (and hot running) bastard :) its a shame they never made these in triphosphor that would be truly blinding

its been many years since I last lit one, and am doing so in preparation for some other tubes arriving, to see how my constant current ballast setup is doing

these SHO/VHO tubes run at 1.5A and my setup gives me a fairly constant 1.65A so I think that should work nicely (im running 13.6Uf of capacitance in series with a 180W Sun tanning choke, its like a beefed up 125W 8ft circuit)

(it would be ideal for running a 200W SLI/H setup but I sadly dont have one of those in the collection! as they run at 1.6A)

the fluke multimeter is measuring lamp voltage

Image_from_iOS_2813429.jpg Image_from_iOS_2814329.jpg Image_from_iOS_2814429.jpg Image_from_iOS_2814529.jpg Image_from_iOS_2814729.jpg
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Filename:Image_from_iOS_2814429.jpg
Album name:Lightbulbfun / My Lamps
Manufacturer:Westinghouse
Type/Model:F48T12/CW/SHO
Wattage:110W
Filesize:2620 KiB
Date added:09 Sep, 2020
Dimensions:2730 x 2048 pixels
Displayed:27 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=14555
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Andy   [09 Sep, 2020 at 06:05 PM]
That looks good but those R17d caps are a pain.
Lightbulbfun   [09 Sep, 2020 at 07:46 PM]
yeah I really do want to get some proper lamp holders at some point! but this works well enough for testing, even if it looks quite dodgy! (due to the way the base is constructed I can fairly securely shove a wire into each contact)

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