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6L6GC vs 6L6GB in a HD-150 amp


6L6GC vs 6L6GB in a HD-150 amp

Music Man Amps Discussion Forum » Tubes & Substitutions » 6L6GC vs 6L6GB in a HD-150 amp

Author Message
 Peter Maziar (mosfet)
Username: mosfet
Registered: 11-2006
Posted on Saturday, December 02, 2006 - 05:48 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 - 04:15 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!