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Title: loud hissing "white" noise Post by: t-rex on April 14, 2012, 01:04:23 PM Can anyone help? My new DZ 30 is producing a loud hissing white noise from all inputs. All factory wiring except the westlabs transformers and choke wired by me. I am a novice and do not know how to check the plate voltage if that has anything to do with it.
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