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RE: New Production 6550/KT88 Tubes

I have not tried the EI KT90 but I have heard good things about them. I do like their 12BH7's which I do run in my amps to help prolong depleting my stash of RCA black plates. I have tried the Penta Labs KT88S with the same bad results from cathode problems. I think they were also made by Tesla at that time and not made in China. I had good results with some of the Chinese KT88's and 6550's but they did not last long. They did sound good though.
"Nothing quite like high voltage DC to sharpen the mind and body!"


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  • RE: New Production 6550/KT88 Tubes - Sidegetter 17:28:53 10/29/14 (0)

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