Oke my tube let me down, after i forgot to check my coolingsystem… my mistake, learned to be sharp again and placed finally a watersensor. But now there is this old tube, after some fidling and crunching i could let the water out en got the back end opened. Inserted two to each other glued ledstrip 4mm red and blue, so now it is a lamp.
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Brilliant.
(pun intended)
Jim
I suppose it’s wired through the ammeter? 
Mine is on the shelf with my other radio tubes…
I’m thinking Steampunk here.
Jim
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Good idea. I just forgot. 