Re: Transformer safety?
Plus the heater-only autotransformer would have its cost slightly offset by the omission of a usually fairly hefty dropper section, and design eased by less heat production. There would still be an HT surge limiter section but as off-line rectified HT sets usually needed all the volts they could get for decent audio power in particular, that dropper section would be small. Makes scale bulb powering less of a knotty gamble of surge-limiting versus running brightness than with series-feed sets, too!
Crossed with McM.
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