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Old 13th Oct 2015, 6:42 pm   #24
Heatercathodeshort
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Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,147
Default Re: 'Beau Decca 131 projection receiver 1950'

That spark is surprisingly large. Mine is quite tiny when producing 25KV and has to be drawn from the bottom of the top cap where it meets the glass. It has that classic 'groan' that should alter with varying beam current.J.
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