Still Freaking Out Over Tube Noise


Welcome to my third installment of this nightmare. I am using my second pair of RT 12AU7's that are making more noise than music and I am about to lose it. This cannot be a common characteristic of tube equipment!!!!!! Why are these tubes so noisy in my preamp (CJ PV10A)???? (The RCA red labels that came with it weren't noisy at all, but they are used up.) The dealer I bought them from is a state away (tube availability is dour in Atlanta) and it is a pain to ship these things back and forth. Would switching to Mallards be a good idea? Some other brand? Try another pair of RT's? Poke my ear drums out??? How can I get my sanity back???

Thanks!!!

Brad Day
bday0000
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I agree to buy the stock tubes from CJ. They test them extensively. Your unit will also sound like it did when it was new. If there is still a problem, send the whole unit to CJ. They'll make it right, and will check the whole unit from top to bottom.
upscaleaudio, Vintage tube services, and Tube World are all places where the tubes are tested extensively.
Sorry, if I am in a little late on this thread, but what kind of "noise" are you hearing? Is it microphonics? Or is it just bad tubes? Have you ruled out any other possible causes? There are many different "noises", and it would help with diagnosis if we knew what you're hearing, and if it is all the time, or when you just turn it on, or only when you play it loud, or does it ever go away, or what?