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In Reply to: RE: Phono hum in Scott 222c posted by Triode_Kingdom on August 30, 2014 at 16:43:58
What is the glaring mistake? I just rebuilt a Scott 340B with the same bias circuit (different resistor values in the 340B) and I get very little hum at no signal input & maximum volume. I used a new bridge rectifier and 4x 100uF caps plus changed the first resistor in the 340B to 22 ohm to get the voltage back to stock.
Follow Ups:
Look at the rectifier diode bridge. Two diodes are drawn backwards.
H-K Citation IV schematics have the same error, just FYI.
Look at that!
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