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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: These are not the best KT66. posted by EML on April 18, 2014 at 08:42:44:
This is the top side and you can see the flashing is very good after 2400 hours.The new reissues have reddish bases.These are my original reissues I bought in late 2007 and they have at least 2400 hours on them and they show little flashing wear.I abuse the hell out of them and I have never red plated them but came close when a cap failed in my Sargent Rayment amps but they are as strong as ever.I have plenty of vintage GEC KT66s,some NIB and the rest testing close to new but most everyone of them I had to secure the lose bases which is so common on the KT66s with a top mounted plate structure.I NEVER had to do this on the reissue Genelex at anytime.
"KT66 should to my opinion run much longer than 3000 hours, as this is by itself a very rugged design. With this I mean the real KT66, with the vintage shape KT66 plates. So not the modified 6L6"
While some tubes do that,the Genelex is not one of them..I know they had a brief issue which has been corrected but you know,that stands to reason when you build as many tubes as they do.
There is no tube that is infallible to failure.Much of the tube failures I have found lately were due to dirty or loose socket pins or not being correctly biased.With SED gone,the only octal tube makers left are New Sensor,JJ,and Shuguang and maybe a couple small ones like PSvane.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
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Follow Ups
- RE: These are not the best KT66. - Michael Samra 17:51:43 04/19/14 (0)
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