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(!!!!!) (Recommended Pair) 6550 Tungsol USA gray plates with holes 1965-1967 (144ma and 145ma)

(!!!!!) (Recommended Pair) 6550 Tungsol USA gray plates with holes 1965-1967 (144ma and 145ma)

$ 479.99

1 pair) 6550 Tungsol USA gray plates with holes 1965-1967 same build original boxes

1 tube) 144ma Gm=11,700 branded GE (JW=1967)

1 tube) 145ma Gm=12,000 branded RCA (6513=1965)

 

 

Good NOS Ma range 120-140ma

Good NOS Gm range 10,000 - 12,000

 

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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