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Old 6th Nov 2019, 9:04 am   #38
lesparapluies
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Join Date: Jan 2019
Location: Liverpool, Merseyside, UK.
Posts: 121
Default Re: Westminster S470M power supply problem?

Thanks for recent postings, will follow them all up. Just had what may be a significant breakthrough. I originally removed the complete chassis from the cabinet and have had it connected to an old surplus speaker while on the bench, leaving the set's speaker in the cabinet. Today I went back to the radiogram cabinet to check the actual speaker for impedance, for the purpose of finding a replacement transformer should it be needed.....it appears to be open circuit! This would possibly suggest that either the speaker failed and the open circuit on the secondary caused the transformer to overheat, or the transformer failed and high voltages on the secondary caused the speaker to fail..classic case of overlooking the obvious perhaps...
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