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Old 19th Apr 2021, 8:00 am   #13
russell_w_b's Avatar
Join Date: Jul 2007
Location: Penrith, Cumbria, UK.
Posts: 3,510
Default Re: Crompton 60W bulb

Originally Posted by Cobaltblue View Post
Dark room maybe for film development.

ISTR red lignts when we were developing B&W film when I was at coledge.
It's the wrong colour for a printing safe-light and there's white light emanating from the end! A bit bright too.

Unless it was mounted behind a deep-red well-glass, of course. I have several coloured lamps (greens, yellows, blues, reds... similar vintage) and they were last used in anger on a sort of poor-man's 'disco-ceiling' at our works social club.

Russell W. B.
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