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RE: Power supply ripple???




Pulled first tube and the voltage when drop some but what was really different was the Hz went from 1-4kz to 10-30hz.

So I turn the power supply off and the scope stayed almost the same. So I took the probe off the power supply and scope went back to normal.

OK my conclusions are the the 1-4kz stuff on the tube in picture was Coming from 1st stage of phono section. The second picture with tube out is using the 3 chokes for antennas.

So it seems we are getting higher Hz from the phono stage and low frequency from the chokes picking something from the air. I did not think low frequency was pick up thru the air.

Well I can use all the information I can get.

Thanks Tom


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  • RE: Power supply ripple??? - TomWh 08:08:53 03/21/17 (0)
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