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(!!!!) (Best Value Used Pair) 6550C Svetlana Russian used/good 2011 (132.2ma and 135.2ma) (same Gm)
(!!!!) (Best Value Used Pair) 6550C Svetlana Russian used/good 2011 (132.2ma and 135.2ma) (same Gm)
By Tube World
$ 109.99
1 pair) 6550C Svetlana Russian used/good 2011 good top getters
1 tube) 132.2ma Gm=10,300
1 tube) 135.2ma Gm=10,350
Good NOS mA range 130-150mA
Sweet spot is 140mA
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