(!!!!) (PAIR) 5751 Hitachi Japan glossy black ribbed plates triple mica double D getters 1960”s (2.0/2.2ma and 1.8/2.2ma) (rare)

1 low noise pair) 5751 Hitachi Japan glossy black ribbed plates triple mica D getter 1960 era

1 tube) 2.0/2.2ma and Gm=1500/1700

1 tube) 1.8/2.2ma and Gm=1500/1400

Good NOS Ma = 2-2.5ma

Good NOS Gm range = 1500-1600

Sweet, smooth, nice mids, quiet, musical.

– Crate V30H
– Conrad Johnson PV12A + Premier 11A, Premier 8
– Conrad Johnson MV75A1 1983
– Jolida 1301 hybrid amplifier
– PEAVEY CLASSIC 30