NOS-6550A

Made by General Electric in the USA, these rare new old stock 6550 have triple-getters. If you want the best tone for your amp these are the tubes to get. An added benefit to having NOS GE 6550A is that these can handle much higher plate voltages and will last much longer in both Hi-Fi and musical instrument amps than most 6550 made today.

We also have a few Sylvania 6550 on hand. These are quite similar sounding and are of the same quality as GE.