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GE F96PG17/CW dying

GE F96PG17/CW dying


This tube was already EOL when monkeyface and me tried to get it back to life. We were successfull with another one, but just for five seconds. This one came back a bit longer, as you see in the video, for about two minutes. After it lost vacuum.

For some tubes, it was very hard to start them in cold environment (around 0-1°C). Powergrooves were a bit easier to start, but the T12 VHO‘s needed to be placed on already lit lamps to raise their temperature. On our RS VHO ballasts, the tubes just glowed and preheated on their ends.

Philips Philora TL100_01.JPG 8931E466-0921-43F6-BCA3-A6AA149E020A.jpeg youtube_iGH98fzjKkk.jpg IMG_4241.JPG

Light Information

Light Information

Manufacturer:GE
Model Reference:F96PG17/CW

File information

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Filename:youtube_iGH98fzjKkk.jpg
Album name:Proteus / Fluorescents
Keywords:Lamps
File Size:9774 Bytes
Date added:Feb 02, 2019
Dimensions:480 x 360 pixels
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Bert
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Feb 02, 2019 at 03:54 PM Author: Bert
VHO should start and run to full brightness in pretty much any temp. I think HO and VHO are rated down to -20 *F
don93s
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Feb 02, 2019 at 08:09 PM Author: don93s
Very cool. On our ballasts, the /VHO are rated as Bert said but the Powergrooves I have run will start in below freezing but may stay dim. The OCV for a standard series (2x)F96/VHO/PG ballast is 525v. A single lamp ballast ranges from 350-480 OCV.
trojmiejski
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Feb 26, 2019 at 12:16 PM Author: trojmiejski
Maybe that's the way with VHO tubes on European ballasts, they are very different in comparison to American ones.
Proteus
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Feb 28, 2019 at 03:52 AM Author: Proteus
European VHO ballasts are designed to run them with a two-phase line at 400V, so OCV will be the same on the lampholders.
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