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Old 28th December 2011, 11:52 PM   #1
Vodoo is offline Vodoo  Portugal
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Default What is a KT88-98?

Hello everybody iŽam new in here, all the way from Portugal

And i wish to ask if anybody now what is a KT88-98 valve ?

Thanks in advance.
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Old 29th December 2011, 12:30 AM   #2
kevinkr is offline kevinkr  United States
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No idea, please post a picture showing the markings on this mystery KT-88..
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Old 29th December 2011, 12:36 AM   #3
rmyauck is offline rmyauck  Canada
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Shuguang I bet!

I've got a pair of 300B-98 tubes.


http://thetubestore.com/shuguangkt88.html

Last edited by rmyauck; 29th December 2011 at 12:38 AM.
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Old 29th December 2011, 01:38 AM   #4
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Yes, that's a current KT88-98. Earlier versions (up to about 3 years ago) had triple getters and much better quality. I ended up dropping them due to quality issues.
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Old 29th December 2011, 03:58 AM   #5
rmyauck is offline rmyauck  Canada
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That pair I picked up in Canada almost 3 yrs ago for a really good price thinking to some day try a DHT amp. I think the seller had just brought them back from China.

I wonder how good these tubes would be?

Randy
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Old 29th December 2011, 04:05 AM   #6
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You get what you pay for. Sometimes less. Good luck.
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Old 29th December 2011, 04:13 AM   #7
rmyauck is offline rmyauck  Canada
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I figured so! I read George of tubelab.com had good luck with those than defective low $ Russian 300B's that were discontinued right after he bought them. His Shuguang's might have been earlier versions than mine.

Thanks!

Randy

Last edited by rmyauck; 29th December 2011 at 04:16 AM.
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Old 29th December 2011, 04:23 AM   #8
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I have had good results with the EH brand. As a matter of fact, the current EH 6922 models the Russian 6N23P-EV.
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Old 29th December 2011, 04:29 AM   #9
rmyauck is offline rmyauck  Canada
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I think the defective ones were Sovtek and they quit selling 300B's after the problems. EH might have replaced them which don't seem to have any problems.

Randy
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Old 29th December 2011, 04:36 AM   #10
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Cool. As it stands right now I'm pretty much sold on the EH brand. I have had no problems to date. Sure, they may have a lower price point than the "esoteric" brands, but I have not measured any compromise in performance.
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