(!!!!) (Best Used Pair) 6550C Winged C by Svetlana Russian used/good 2001 faded top getters (135ma and 140ma) (Gm like new) **

1 pair) 6550C Winged C by Svetlana Russian used/good 2001 same date codes (0121)

1 tube) 135ma Gm=11,300

1 tube) 140ma Gm=11,000

Good NOS mA range 130-150mA

Sweet spot is 140mA

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