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Re: MAC tube questions for Ron-C and MAC users

Mike,

The 5751s are an acceptable 12ax7a substitution in your MC2102 and MC2200. Please understand that both of your units were tested and ran with the stock tubes to obtain the published low distortion performance.

The 5751 would be a good choice in the phono section of the 2200 or input tube of the 2102.

Ron-C


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