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LYR: Faint, staticky, high-pitched noise issue - Page 2

post #16 of 19
1/4/12 at 10:15am

My clock radio would always buzz the second before a call or text would come into my phone.  Sometimes, the phone could be several feet away and the same would still happen.

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post #17 of 19
1/4/12 at 8:09pm

Seems it was mostly EFI... moved further from the computer helped a bit, but the biggest difference was unplugging the USB cable from the DAC from a hub and directly into the computer (even tho I heard the noise with the DAC disconnected, evidently it was looping through the power cord or something?)

 

Was still a bit of static bursts left, however swapping tubes swapped the channels, so apparently I have a noisy tube (still burning in, so it may go away).

 

I feel soo much better now :)

 

thanks to all!

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post #18 of 19
1/4/12 at 8:18pm

I've successfully been able to eliminate tube static several times by taking a brass brush and cleaning off the tube pins.  Then, rinse with isopropyl alcohol.  Clean looking pins aren't always actually clean.
 

Quote:
Originally Posted by SeaHawk View Post

 

Was still a bit of static bursts left, however swapping tubes swapped the channels, so apparently I have a noisy tube (still burning in, so it may go away).

 

I feel soo much better now :)

 

thanks to all!



 

 

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post #19 of 19
1/30/12 at 3:15pm

FWIW, rolled in some russian 6N1P-EVs and the hiss was cut to a level it's barely audible.  Seems the stock JJ-E88CCs are a bit noisy for those of us with higher sensitivity headphones.

 

Now I have to try some other tubes to see what happens.. oh god my wallet...

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