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Author Topic: 3 wire power cord for dynaco st-70  (Read 2433 times)
Posts: 15

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« on: August 31, 2011, 09:38:49 AM »

I have a Dynaco ST-70 which is very noisy!  I noted that if I cross the power cord with another AC wire of another component at 90 degrees then the amp. is dead quiet. I would like to modify my st 70 power cord to 3 wire type so I can braid/shield it.  The question is: Do I just ground the 3rd wire to the chassis?
Any suggestion would be helpful!

steve f
« Reply #1 on: August 31, 2011, 10:35:03 AM »

It's the place to start.  I hate moving grounds around in the chassis itself.  Also check that existing grounds are clean and tight.
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