(!!!!) (Best Value Used Pair) 6550C Winged C and Svetlana Russian used/good 2000-2001 faded top getters (126ma and 125ma) (Close Gm) ** 6550C Svetlana Russia 2001: 6550C Svetlana Russia used

1 pair) 6550C Russian used/good 2000-2001 faded top getters

1 tube) 125ma Gm=10,250 (2001) WInged C

1 tube) 126ma Gm=10,400 (2000) Svetlana

Good NOS mA range 130-150mA

Sweet spot is 140mA

– ARC VS 110 and other ARC amps
– Audio Research Reference 3 line-stage power supply
– Rogue 90
– VTL amps; MB300, 450, many others
– Gibson guitar amp
– McIntosh 275
– Beard P100 MKII 1984
– Cayin A-88T