6L6GC vs 6L6GB in a HD-150 amp

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Author Message   Peter Maziar (mosfet) Username: mosfet Registered: 11-2006 Posted on Saturday, December 02, 2006 - 07:48 pm:    Hi all, I have a great new set of Sylvania 6L6GB tubes I have kept safely in storage for two and a half decades. Can I use the 6L6GB tubes instead of 6L6GC in my Music Man HD-150 amp without burning them out? Can the GBs handle the plate voltage in the HD-150? Thanks.   Mike Kaus (mm210) Username: mm210 Registered: 05-2006 Posted on Monday, December 04, 2006 - 06:15 am:    NO-NO-NO! The GB's can only handle about 350v if my memory serves me right. THye're closer to the voltage rating of a 6v6. Maybe not THAT low but pretty low. Do NOT use them in a MM. Think Chernobyl!