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Other Vintage Household Electrical or Electromechanical Items For discussions about other vintage (over 25 years old) electrical and electromechanical household items. See the sticky thread for details.

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Old 19th Mar 2018, 10:05 am   #21
Tractorfan's Avatar
Join Date: Mar 2008
Location: St. Frajou, l'Isle en Dodon, Haute Garonne, France.(Previously: Ellesmere Port, Cheshire, UK.)
Posts: 2,683
Smile Re: Arrow 1000/S 1000W Quartz Halogen Movie Light Smoking

Linear halogen lamps of that sort have a small contact at each end which engages with a spring loaded stud in the holder. I've had lots of these that lose their 'springiness' over time due to the heat. The result is an uncertain contact resulting in arcing and crackling. Also, it usually destroys the ceramic cap and the lead-in wire.
1 Kilowatt is quite a bit of energy to force through a small springy stud!
Cheers, Pete.
"Hello?, Yes, I'm on the train, I might lose the signal soon as we're just going into a tunn..."
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