Quote:
Originally Posted by G6Tanuki
I always thought the coiled coil bulb filaments were developed as a way to reduce heat-losses from the filament so it ran hotter and hence gave a "whiter" light.
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Your statement above seems to be borne out here:
http://www.lamptech.co.uk/Documents/IN%20Coiling.htm
I seem to remember Crompton Lamps having an ad campaign (?1950s) based on the advatages of the coiled coil, although, In retrospect, I suppose most other manufactrers were using the technique as well.
They just didn't shout about it though. Tony.