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(!!!!!) (BEST SYLVANIA PAIR) 6550 Sylvania welded plates NOS same date codes 1970's (140ma and 142ma) (BEST PAIR)
(!!!!!) (BEST SYLVANIA PAIR) 6550 Sylvania welded plates NOS same date codes 1970's (140ma and 142ma) (BEST PAIR)
$ 329.99
1 matched pair) 6550 Sylvania welded plates NOS original boxes 1970's - same date codes - excellent pair - you can't buy a better pair
1 tube) 140ma Gm=11,300
1 tube) 142ma Gm=11,350
Good NOS Ma range 125-140ma
Good Gm range 10,000 - 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
See more: vacuum tube
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 (BEST SYLVANIA PAIR) 6550 Sylvania welded plates NOS same date codes 1970's (140ma and 142ma) (BEST PAIR) "Pin It")