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So I have several Thorens tables, they are all good without any issues except for my Thorens TD 126 MK 3. It's got a very loud hum.. When I hook up the ground wire on the phono stage 90% of the hum disappear, but it's still there.. I have tried switching phono stage and lines stage and but the hum is still there. I notice that it's louder when I use a tube phonostage compared to SS.. Just like what I said all the other tables are quiet... It's just her. Any advice, suggestions? Thanks
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Hmm.. I will give that a try.. But they are all like that.. Aren't they? I have couple of TD 150, 145 MKII , 126 MK II..possibly configured the same way. It's just this TD 126 MK 3 that's driving me nuts..
I don't know if they're all like that. I owned only the TD-126 Mk III. I was using a low-output moving coil so my phono stage had at least 20-dB more gain than if I had been using a moving magnet. All I know is that when I rerouted the tonearm wires out the side of the plinth, the hum problem disappeared. I played that turntable for 20-years before upgrading to my present Sota Millennia Vacuum with SME V.
Best regards,
John Elison
I bought a brand new Thorens TD-126 Mk III with factory installed SME III tonearm many years ago and mine also exhibited hum. I noticed that the tonearm wires came out the back of the plinth right next to the power cord. I thought that was rather strange so I removed the metal box that held the RCA connectors and rerouted the tonearm wires out the side of the turntable as far from the power cord as possible. That eliminated my hum problem completely. I'm still perplexed at that arrangement with the tonearm RCA connectors right next to the power cord.
Best regards,
John Elison
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