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05/21/13 at 19:47:24







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High pitched whine (Read 484 times)
roggae
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Posts: 27
High pitched whine
06/09/12 at 18:24:07  
My MT has started making a very high pitched whine. It sounds like its coming from the tubes. Ive had tubes buzz and hum before but this is much higher frquency. Just trying to troubleshoot.
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Rivieraranch
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Re: High pitched whine
Reply #1 - 06/09/12 at 19:20:32  
Start changing tubes I guess. You may wish to start with the inputs and then the rectifiers.
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DECWARE CSP2+, TABOO; MINI TORII SE #33; SE84CKC; MG944 speakers; TRAPEZIUM DESKTOP SPEAKERS; TECHNICS SL1200MK5 turntable; Ah! Njoe Tjoeb CD player; MARANTZ 2226B, 2216B receivers; SENNHEISER HD-580 headphones
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roggae
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Re: High pitched whine
Reply #2 - 06/09/12 at 21:39:14  
Shortly after posting this i flicked the tubes. Left channel rectifier was vibrating. Problem solved..
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hifitubes
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Posts: 75
Re: High pitched whine
Reply #3 - 06/13/12 at 05:09:10  
I always thought is was the OC2 whining with that high pitch. I think I added dampers, but I can't remember if that solved it.
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