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(!!!!) (Recommended Used Pair) 6550C Svetlana Russian used/good 1997-2000 (135ma and 136ma) ** (1-3% matched)
(!!!!) (Recommended Used Pair) 6550C Svetlana Russian used/good 1997-2000 (135ma and 136ma) ** (1-3% matched)
$ 89.99
1 pair) 6550C Svetlana Russian used/good 1997-2000
1 tube) 135ma Gm=10,600 (1997)
1 tube) 136ma Gm=11,000 (2000) faded top getter
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
See more: vacuum tube
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 (Recommended Used Pair) 6550C Svetlana Russian used/good 1997-2000 (135ma and 136ma) ** (1-3% matched)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_a95046dd-169e-4b04-8eae-d0bbfac4b001.jpg?v=1724512639){kind=link}
 (Recommended Used Pair) 6550C Svetlana Russian used/good 1997-2000 (135ma and 136ma) ** (1-3% matched) "Pin It")