Author Topic: Whistling Sound  (Read 372 times)

Offline rollo

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Whistling Sound
« on: June 08, 2020, 08:27:48 AM »
  Recently the left ch 211 amp had slight and short whistling sound. Anyone know what would that be ? tube ?

charles
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Offline doug s.

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Re: Whistling Sound
« Reply #1 on: June 13, 2020, 08:10:58 PM »
i did some on line searching; seems it's not all that unusual.  could be a tube, but could also be a filter cap.  which the general consensus is don't mess w/the caps yourself - lethal voltages there.  you could check tubes by gently tapping them, and/or removing and replacing them.  you could try swapping the l/r channel tubes.  i'm assuming the noise is coming from the speaker...

doug s.
  Recently the left ch 211 amp had slight and short whistling sound. Anyone know what would that be ? tube ?

charles

Offline rollo

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Re: Whistling Sound
« Reply #2 on: June 15, 2020, 09:11:16 AM »
  Removed tubed cleaned contacts on tube and Amp. Gone.  Thanks.


charles
contact me  at rollo14@verizon.net or visit us on Facebook
Lamm Industries - Aqua Acoustic, Formula & La Scala DAC- INNUOS  - Rethm - Kuzma - QLN - Audio Hungary Qualiton - Fritz speakers -Gigawatt -Vinnie Rossi,TWL, Mad Scientist, Swiss Cables

Offline doug s.

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Re: Whistling Sound
« Reply #3 on: June 28, 2020, 11:37:11 PM »
glad it was a simple fix.

doug s.
  Removed tubed cleaned contacts on tube and Amp. Gone.  Thanks.


charles

Offline rollo

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Re: Whistling Sound
« Reply #4 on: June 29, 2020, 01:06:15 PM »
  Me as well. Thanks. BTW back to normal relations.

charles
contact me  at rollo14@verizon.net or visit us on Facebook
Lamm Industries - Aqua Acoustic, Formula & La Scala DAC- INNUOS  - Rethm - Kuzma - QLN - Audio Hungary Qualiton - Fritz speakers -Gigawatt -Vinnie Rossi,TWL, Mad Scientist, Swiss Cables

Offline doug s.

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Re: Whistling Sound
« Reply #5 on: June 29, 2020, 01:06:52 PM »
 :thumb:
  Me as well. Thanks. BTW back to normal relations.

charles

Offline rollo

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Re: Whistling Sound
« Reply #6 on: July 08, 2020, 08:18:08 AM »
   Strange for sure. It comith then it goith.  UFO s?


charles
contact me  at rollo14@verizon.net or visit us on Facebook
Lamm Industries - Aqua Acoustic, Formula & La Scala DAC- INNUOS  - Rethm - Kuzma - QLN - Audio Hungary Qualiton - Fritz speakers -Gigawatt -Vinnie Rossi,TWL, Mad Scientist, Swiss Cables

Offline doug s.

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Re: Whistling Sound
« Reply #7 on: July 14, 2020, 12:22:27 AM »
try swapping tubes from one channel to the other?

doug s.
   Strange for sure. It comith then it goith.  UFO s?

charles