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Question on Chinese Tubes Shuguang KT-88-T (Nature series)

I bought an amp with the Shuguang KT88-T  tubes. One month after I bought it, a tube failed. So now I have 3 very good tubes which I cannot find anywhere but China. Just perusing through posts about this tube I have discovered that these tubes have had reliability issues. In my case, it took out a channel in my amp which had to be sent back to the builder to be repaired. I don’t want anymore of that. Considering the past problems of poor reliability & my own situation which was expensive, I wonder if its wise to even buy one more of these Shuguangs and take the chance on tearing up my amp with it again. BTW the amp had built in protection but it didn’t work. Don said he had put in more safety measures when it was repaired. . But I’m concerned. . What’s your thoughts. Abandon the Shuguang? Try another one?
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Showing 1 response by oldhvymec

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oldhvymec
5,101 posts
 
The Rubys used by Cary were some great sounding valves.. They were Shuguangs (I'm pretty sure).  They were better than GL. BUT the GL now, don't suffer the failure rate like they use to either.. For a few years everyone had quality issues.. Factories were being sold everywhere and new factories were being built..

Tube equipment came back with a fury.. It's everywhere CHEAP too..

NOW Valve plants, are in actual competition again (less the covid crap),
for price, quality and market share.  Like it should be..

Regards
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