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SE84CS...output tubes going? (Read 1294 times)
jgfergus
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SE84CS...output tubes going?
11/09/09 at 15:35:21
 
Hi Steve,
I bought my SE84CS back in 2001 but it remained in storage until I got a pair of high efficiency speakers (Coincident Super Eclipse III). So I hooked up the Zen earlier this year and have been loving the sound. However, just last night while listening to Mark Knopfler's latest CD, I started to hear popping sounds from the left speaker. After a few moments, the left channel died completely. If I turn the Zen off and let it rest for a few minutes then turn it back on, it will play fine for several minutes until the same thing happens. Being a tube newbie, I suppose this is what happens when the output tubes begin to fail??

Could you comment?

I'd also like to send the amp back to you for the CCE upgrade.

Cheers,
Jeff
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Doorman
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"pouring from
the empty into the
void"

Posts: 419
Re: SE84CS...output tubes going?
Reply #1 - 11/09/09 at 21:51:57
 
(at the risk of telling you something you probably already know!)
One should always have extra tubes to hand- the easiest and often the only remedy required, is to change 'em out and see what happens.
"honest honey, I need the extra tubes just in case! Wink
Best, Don
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Decware SE34I w/ CCE mod, ZCD, Heybrook/Linn/Clearaudio, Hagerman,
Goertz/Wireworld/cat-5/MarkAudio Alpair 10.2 drivers
(eN) in DIY Mar-Ken cabs
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Steve Deckert
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If the 1st watt
sucks why continue?

Posts: 2381
Re: SE84CS...output tubes going?
Reply #2 - 11/10/09 at 01:43:32
 
Hi Jeff,

Welcome to the forum!  It does sound like a tube failure... unusual for only a year of use, I say that because you said you're a tube newbie.  They usually last for at least a couple years, and most of the time they don't fail, they just wear out and put out less power.  

When you send the amp in for the CCE mod, we'll set it up with a fresh set of tubes.

Steve
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