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Old 23rd Apr 2019, 7:08 pm   #22
Heatercathodeshort
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Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,147
Default Re: The lightbulb conspiracy

Must admit Dave I have never heard the term 'Supercoil' but I'm surprised it was not taken up by a leading lamp maker. The 15 and 25w lamps were always single coil, often a long filament strung between spider supports.
They were delicate. The best ones were manufactured for the hood lamp on the Hoover vacuum cleaners. They were very rough service! J.
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