Replacement Valve Kit for Fender Princeton Reverb Reissue (64, '65 and '68) (...
Bias information: The Princeton Reverb Reissue is a “fixed bias” amp. 1 xPremium Grade JJ ECC81 (12AT7) valves. This is for the reverb driver and lead distortion (position V2). We think these are the best valves/tubes for this amplifier.