Just as well the Health & Safety Gestapo (Excuse me, I mean Executive) weren't around in those days, or some of these innovative methods might never have been used.
I've never come across a brine or caustic-soda lamp dimmer. In my time as lights/sound man for amateur theatre the oldest technology I ever came across was the big linear and rotary rheostat dimmers. Mind you, some of those could be a little scary, and I remember how hot the little control booth got at the end of an act set at night!
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) weren't around in those days, or some of these innovative methods might never have been used.
