(!!!!) (Recommended Used Pair) 6550C Svetlana Russian used/good 1997-2000 (135ma and 136ma) ** (1-3% matched)
$89.99
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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
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$79.99
$89.99
(+$10)