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Help on tube question

Is it possible to replace a bad kt88 tube with a 6550c tube and do no damage? The VAC 160i uses 4 KT88's and with one of the tube bad, I have lost one side of sound. If it were ok to use the 6550c's, I could replace the 4 KT88's or just one. I know Monday I will get help from VAC. But, I just want to hear that sound again if I could and do no damage.
Thanks for any information or Opinions. Tra
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Showing 1 response by mercury3

mercury3
3 posts
 
I had an Audio Research Classic 60 with KT88's kept failing now and then. I replaced them all with 6550's and never had another tube failure as long as I owned the amp which was about 20 years. Could just be my bad luck but I've never been comfortable with KT88's ever since.

But yeah the tubes need to match. Don't mix a 6550 with the KT88's. Just replace them all I think.
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