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Vintage Radio and Phonograph cutter schematic
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9th Nov 2019, 8:09 pm
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60
ms660
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Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
Re: Vintage Radio and Phonograph cutter schematic
Just looking back at Post#41, only slight hum was reported, I would check everything done since then and also determine whether the hum is 50Hz (mains, heaters etc) or 100Hz (HT ripple)
Lawrence.
ms660
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