Clueless audio fools is closer to the truth. "There's a sucker born every minute" -John > Audio aficionados swear by this rectifier. I have heard of a NOS 274b > tubes going for as much as $1000 each! Not for this old boy! > > Rick/K5IZ > > jcoward5452 at aol.com wrote: > >> 220039907659 >> >> Why is this tube so special? >> Thanks, >> Jay KE6PPF