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

1 pair) 6550C Winged C by Svetlana Russian used/good 2000-2001 faded top getters 1 tube) 125ma Gm=10,250 (2001) 1 tube) 126ma Gm=10,400 (2000)   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