Tube Amp Schematics - Rickenbacker Welcome to Rickenbacker 4/15/2019: B9A Amplifier. B16 and B16D Amplifier. B16A and B16AD Amplifier. B410 and B212 Amplifier Forum - Rickenbacker M8 AMP May 26, 2014Does anyone use an M8 amp? From what I read they are about 5 watts? I'm thinking about getting one for use at the house. Just not too much info on them out there.