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Old 25th Aug 2019, 9:44 pm   #2
Heatercathodeshort
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Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,147
Default Re: Horrible hum on Marconiphone radiogram

Interesting. Something tells me this pick up should have a 'hum bucking' coil. This has the appearance of the pick up coil and is usually mounted just above the assembly and is wired in anti phase. You may have disturbed/miss wired it? Just a thought. John.
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