By wary of any tube seller that uses the term: "NOS in white boxes". Much more common with JAN tubes that were bulk packed, this term usually means that the tube tests as NOS and comes in a white box. Not the same thing.
Constant noisy tubes maybe go solid state?
I have a Quicksilver Line Stage Preamp (12AT7) mated to an Odyssey Khartago Stereo. Overall I like it. Way too much gain but I digress. Weeks after receiving it I rolled in a few different tubes, kinda fun to color the sound signature. I liked rhe RXA black plates I got and those stuck around for more than a year. They started going microphonic and making noises so I ordered another pair (noisy) then another different vendor (blasts of white noise) and another set that arrived today (one is noisy as holy hell and one seems fine).
So where does one order preamp quality tunes that are quiet? Is there something I’m not requesting when ordering? Maybe dump
snd go solid state? I’m trying to be humorous because I’m pissed. Ha.
So where does one order preamp quality tunes that are quiet? Is there something I’m not requesting when ordering? Maybe dump
snd go solid state? I’m trying to be humorous because I’m pissed. Ha.
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Brent Jessee sells high quality tubes. The catch is you must request noise testing; it's $10 per pair I believe. Depending on the circuit in your component you may need to use low-noise tubes. I only buy noise tested NOS tubes. Andy at Vintage Tube Services includes testing for noise and microphonics, Upscale does as well. |
@yogiboy Thanks. But like at Tube depot, they have an incremental charge of $4 for "Low Noise & Microphonics" which based on your description would seem to be binary or incompatible....? Is this a good option to choose ? And next, when we use the term quiet or noisy are we talking solely about the hiss in the speaker drivers ? Really a nob question 😞 |
" By wary of any tube seller that uses the term: "NOS in white boxes". Much more common with JAN tubes that were bulk packed, this term usually means that the tube tests as NOS and comes in a white box. Not the same thing. " Help me understand why you think you need to be wary of NOS in white boxes from reputable tube dealers. I’ve had a NOS NIB RCA 12ax7 fail, and just had a New Production Psvane KT88 NIB fail after 300 hours. Any tube can fail regardless how they were packaged. |
facten Help me understand why you think you need to be wary of NOS in white boxes from reputable tube dealers ...Most likely, if it’s shipped in a white box, it isn’t New Old Stock. Rather, it’s a used tube in a plain white box. Some tubes were shipped new by the manufacturer in bulk without an individual box, but they’re the exception. |
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