Quote:
Originally Posted by maxhifi
Were there any transformerless sets in Australia? 240V seems like a lot of filaments.
I really, really like my new isolation transformer. It's so luxurious to be able to work on a line powered device without being paranoid about safety.
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Paranoia runs deep, into your life it will creep!
The sets built in the 240 volt areas used valves (tubes) that had a higher heater voltage at lower current. Many times they added up to more than 120 volts, so they only had to drop less voltage from 240 volts. The mains dropper was a high wattage item and still a common failure item.
05-21-2018, 11:19 AM
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