2. amps-preamps
  3. 161387-96791

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.
gochurchgo
gochurchgo OP
923 posts
 
@yogiboy  Upscale suggested it. It’ll be high gain obviously but I’ll give it a shot. I’ll also look into AY and AU as well. Spent more than I planned but it’ll be a test to see how good the betting is I suppose.

@decooney  with my mostly quiet but slightly microphonic Phillips tubes in its mostly back to business. 
sokogear
1,100 posts
 
waste of time....KISS
yogiboy's avatar
yogiboy
5,765 posts
 
@ gochurchgo
I hate to burst your bubble but I think your spinnin’ your wheels. You said the problem was too much gain with the QS preamp. You are replacing the At7 with a 6201. Both of those tubes have the same gain. Good luck and all the best!
invalid
1,249 posts
 
You should clean out your tube sockets, it may have some residue in there.
gochurchgo OP
923 posts
 
@yogiboy the purpose of the thread was bad tubes. Gain is a design issue. For now good tubes are the answer until I can search more into other varieties.
More to discover