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Showing results for tags 'tubes crackling'.
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My DT-25 makes a static like crackling noise, mostly shortly after startup. I have noticed that when I switch to class A, the noise disappers, Then it returns when I switch back to A/B. For the most part the amp seems fine, crackling does not appear to be effecting tone. I am using it at low volume in a apartment ... All tubes were replaced a year ago. I realize they do need replacement after sometime. I am just wondering if the switching between classes points to a particular issue, (pre-amp tube, power tube, dirty connectors etc ..) or is just a interesting observation. Thanks.
