JJ 6550 - Tested & Matched
6550 is a beam output pentode with an octal base and power of 35W. Very powerful and great for bass, guitar and Hi-Fi amplifiers. It delivers a little less power than the KT88 but with a fatter tone.
6 month warranty on ALL tubes
All RUBY™ Tube power tubes come already matched. There is no extra charge for this service. Our Magic Parts matching process is very exact and our tubes are matched within +/- 1 mA (mille amp) of each other.
6 month warranty on all tubes