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Junior Varsity
Power supply for GL 3000 scary noise
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<blockquote data-quote="Greg Cameron" data-source="post: 105578" data-attributes="member: 42"><p>Re: Power supply for GL 3000 scary noise</p><p></p><p>I wonder if the mounting screws for the transformer have come loose and are allowing the normal vibration to create a buzz. If it's really noticeable, you might want to have a bench tech take a look. PSUs were not one of A&H's strong suites when it came to reliability on their smaller analog desks. I've had a couple of failures of the RPS9 for my GL2200. But the issue was different than yours. I had voltage regulator IC failures which dumped a lot of noise into the board.</p></blockquote><p></p>
[QUOTE="Greg Cameron, post: 105578, member: 42"] Re: Power supply for GL 3000 scary noise I wonder if the mounting screws for the transformer have come loose and are allowing the normal vibration to create a buzz. If it's really noticeable, you might want to have a bench tech take a look. PSUs were not one of A&H's strong suites when it came to reliability on their smaller analog desks. I've had a couple of failures of the RPS9 for my GL2200. But the issue was different than yours. I had voltage regulator IC failures which dumped a lot of noise into the board. [/QUOTE]
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