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1958 RCA SHF-4 Record Player Amp
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01-21-2015, 12:21 PM
Olorin67
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Join Date: Feb 2014
Location: Milwaukee
Posts: 927
If i recall right, this unit uses a split level power supply to provide grid bias to the output stage. Check the voltages on on the output tubes to see if everything is oK. -or as suggested, check the current in the output tubes.
Olorin67
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