you said it hums only when spinning? if the motor is not running, can you hear the sound? if not, can you spin the platter and hear it. If no, and a belt drive, disconnect the belt and turn it back on. if you hear it when the motor is not running but spinning the platter by hand, could be a bearing issue. If you hear the noise when motor is running but belt disconnected, it could be motor bearing or capacitance issue with the motor. I had bearing issue with a gyrodec and when i replaced, it solved the noise issue. trying to isolate to a section of the table will be key to troubleshooting the problem
Noise out of speaker from turntable
looking for some leads on potential issue from my turntable
have had this issue for years, in two different homes, have tried cheating the ground pin, different grounding, latest PS Audio HumBuster.
it does seem to be a ground hum, but a low level slightly fluctuating sound, which when platter is spinning, and no music, can be heard. Most of the time, when record is playing, aside from very high volume, the music drowns out the noise.
Years ago, maybe 15 years ago, when I owned a JA Michell Gyrodec, and had a similar noise, he knew exactly what it was, and replaced I capacitor in the motor i believe?
My current table has a separate power supply,it is a Symphonic Line RG-6, the rest is a Graham 2.2 arm, with a VDH Black Beauty Special X, LOMC.
i am now far away from a tech, so would like to diagnose anything here first and hope anyone can offer some advice.
TIA
have had this issue for years, in two different homes, have tried cheating the ground pin, different grounding, latest PS Audio HumBuster.
it does seem to be a ground hum, but a low level slightly fluctuating sound, which when platter is spinning, and no music, can be heard. Most of the time, when record is playing, aside from very high volume, the music drowns out the noise.
Years ago, maybe 15 years ago, when I owned a JA Michell Gyrodec, and had a similar noise, he knew exactly what it was, and replaced I capacitor in the motor i believe?
My current table has a separate power supply,it is a Symphonic Line RG-6, the rest is a Graham 2.2 arm, with a VDH Black Beauty Special X, LOMC.
i am now far away from a tech, so would like to diagnose anything here first and hope anyone can offer some advice.
TIA