Ring 58W tube 
In the GEC Speedpack 

This tube happens to be EOL

Ring 58W tube

In the GEC Speedpack

This tube happens to be EOL

20241026_144510.jpg 20241026_145205.jpg 20241026_130331.jpg 20241026_130342.jpg 20241026_130311.jpg
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Beta 5   [27 Oct, 2024 at 12:24 AM]
Shame its EOL Sad Sylvania made though and I don't hink their T8 halo tubes had particularly good lives Confused
Flurofan96   [27 Oct, 2024 at 11:12 AM]
Ah I see yes the etch looks Sylvania style. I could however try to run it on HF electronic ballast (as it open cathode failure) but the EOL cutoff feature will prevent it from starting up
Beta 5   [27 Oct, 2024 at 11:39 AM]
Yes they always had nice neatly stamped etches Cool It might light on HF as some can run the tube with an open cathode but if it's out of emitter then it will still rectify and trip the HF's EOL protection
Flurofan96   [27 Oct, 2024 at 01:52 PM]
Just need to wire up the Fitzy LPF158 to a plug and wire and then I'll try this Ring tube to see if any luck Smile

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