New amp on the way! Well, used but new to me. A Jolida 502A with 6550 tubes. I can't wait! Is there any difference between 6550 tubes and KT-88 tubes? This will make tube amp number three. Does anyone out there have experience with the 6550 tubes? I think there is a common upgrade out there for 6550's but I haven't found it recently.
madmax

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