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10/24/14 at 09:52:11


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The SV 83 Test Bed: (Read 372 times)
Mark
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Posts: 190
The SV 83 Test Bed:
06/07/13 at 15:21:03
 
OK... So I've had my Zen Triode on at least 12 hrs. a day, every day, since early Sept. 2012... I figure a total of about 4000 hrs., since some days I had it on 16 hrs. I can't imagine a more rigorous test for these tubes, since I also turned them off when I went to bed...

I popped in a new set [exactly same], and I did notice a certain lift in the definition... So I'm guessing that the 5000 hr. limit is practical.

Note: OK, so you now know that I'm a recluse... (m.)
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Rivieraranch
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Re: The SV 83 Test Bed:
Reply #1 - 06/07/13 at 21:02:36
 
At that point they lose drive and punch. I had a pair with similar hours and switched it out for a pair of new 6P15P-EV and what a difference! Much livelier and strong.
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