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Old 24th Nov 2018, 6:19 pm   #18
hannahs radios
Hexode
 
Join Date: Jan 2012
Location: Weymouth, Dorset, UK.
Posts: 422
Default Re: Voltage standardisation

Heatercathodeshort re 440 Volts supply don't forget that 440V between phases would give 255V phase to earth so would have been suitable for domestic use. Even these days your local transformer gives 433 Volts phase to phase and 250 phase to neutral, so really not much has changed.
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