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(!!!!!) (Recommended Pair) 6550 Tungsol USA NOS gray plate with vent holes 1971 (128ma and 130ma)

(!!!!!) (Recommended Pair) 6550 Tungsol USA NOS gray plate with vent holes 1971 (128ma and 130ma)

$ 449.99

1 matched pair) 6550 Tungsol USA NOS gray plates with vent holes 1971

1 tube) 128ma Gm=10,400 Tungsol 1971

1 tube) 130ma Gm=11,000 Tungsol branded RCA 1971

 

Good NOS Ma range 120-140ma

Good NOS Gm range 10,500-11,000

 

Recommended for

- 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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