[BC] substitute driver tube for FM-2.5K ?

Gary Glaenzer gglaenzer
Mon Mar 26 12:06:28 CDT 2007


I have been told that I can use a 4CX250B in place of the 4CX150A driver in
the FM-2.5K (1981 vintage)

Can anyone confirm or deny this ?

Any stories; good, bad or ugly ?

Thanks !

Gary



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