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RE: MA-1 blew 7A fus

Hi Charles,

IMHO ---most NOS 6AS7's are NOT GOOD in our amps especially the ones made by RCA. The only exception to this is the ones made by Sylvania but they are very difficult to find. The RCA's will arc over more sooner than later. I personally had 6 of them arc over at the same time in my M60's and 4 of them arc over at the same time in the other mon-block. The result was that they blew the output fuses in both amps. I would stick to using the Russian or Chinese tubes.


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  • RE: MA-1 blew 7A fus - Jack Williams 16:39:20 07/21/14 (0)

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