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"Salt water dimmers were gradually replaced by semiconductor dimmers, the last dimmers in London theatres being replaced in 1959." I would have expected that t
by guenthert 2y ago
"Salt water dimmers were gradually replaced by semiconductor dimmers, the last dimmers in London theatres being replaced in 1959."
I would have expected that they would have been replaced by adjustable transformers as soon as lights were powered using AC.
- beAbU 2y agoI suspect the power requirements would have required truly massive and very expensive transformers. Stage lighting requires massive amounts of power. My guess is salt water resistors remained the cheaper and simpler alternative until semiconductors took over, completely skipping variacs.