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Author Topic: What is this component?  (Read 2465 times)
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there's nothing between the 2 electrodes, that's just a smudge on the glass tubing.. it reminds me of one of them high voltage flashes from a camera, no part number, found it in a box of electronics that were going to be thrown out..
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Looks like applying a high voltage to the electrodes should produce a small lightning inside...
I'd wear glasses and stay safe away from the thing, though... smiley-wink
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Looks like a spark gap tube. Thinking of building an arduino controlled Tesla?
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um, I have no idea just never seen one before! - also found a mercury tilt switch and heaps of other extracted parts from old boards i presume..

I'll keep it then maybe one day a small lightning storm smiley - thanks smiley
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Norfolk UK
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You get spark gap components (a lot smaller) in HT side of CRT control circuits maybe this is one from the valve era (even to old for me lol)
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Spark gaps also appear in assorted telecommunications equipment; the kind that connect to long wires strung through the air...  They're apparently required due to regulatory issues; I don't know if they'd do any good in the event of a nearby lightning strike.
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