Ok I got two MMB 6v6gt amps both 1977 models one has the original filter caps at .70@350volts, the other has replacements at .22@350 volts. The .70 one is much louder and breaks up quicker, the other is not as loud and breaks up much later. The schematic shows they should be .20@350volts. I did see a pic in this club of a mallory filter cap and it did say .20 on it. What have you guys seen in these? I like the tone of the .22 one best.