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Old 28th Apr 2019, 6:45 pm   #53
Heatercathodeshort
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Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,145
Default Re: The lightbulb conspiracy

It appears that the goal in the early part of the 20th Century was to produce a lamp life that was as long as possible often at the expense of actual light output.

Later a compromise was agreed upon giving the best possible light output combined with a long life. Maybe not a Cartel as such, just a sort of standard suggested guarantee of efficiency.

A lot of technology and care for a few pennies. John.
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