4th Apr 2019, 3:05 pm
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#2
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Moderator
Join Date: Jun 2003
Location: Oxford, UK
Posts: 27,943
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Re: Roberts 505
Do you mean an R505? https://www.radiomuseum.org/r/roberts_r505r_50.html
This is a battery transistor radio so it's not clear why it would be humming.
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