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3rd May 2009, 03:29 AM
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diyAudio Member
Join Date: Feb 2005
Location: Hong Kong
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Reparing Mcintosh MC7150
Just sharing my experience.
http://www.review33.com/avforum/inde...95081214021700 The Mc with a output transformer seems not stable. The good channel was measured with self-oscillation too. The oscillation measured at 2MHz and at negative cycle more. Both channels output add 2200pF series with 4Ω resistor to ground and the problem was fixed. |
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