Home » Power Tubes » (!!!!!) (Best Pair) 6550A GE NOS "stapled plates" 1985-1986 (138.8ma and 139.2ma) 1-2% matched

(!!!!!) (Best Pair) 6550A GE NOS "stapled plates" 1985-1986 (138.8ma and 139.2ma) 1-2% matched

Name: (!!!!!) (Best Pair) 6550A GE NOS "stapled plates" 1985-1986 (138.8ma and 139.2ma) 1-2% matched
Brand: Tube World
SKU: 6550agejanpr
Price: 389.99 USD
Availability: InStock

By Tube World

$ 389.99

1 pair) 6550A GE NOS "stapled plates" 1985-1986 - large shiney getters on both tubes - excellent pair - sweet lush midrange

1 tube) 138.8ma and Gm=11,800

1 tube) 139.2ma and Gm=11,650

TUBES PLUGGED INTO OCTAL SOCKETS IN PHOTO

Good Ma range 120-140ma

Good Gm range = 10,000 - 12,000

(warm and punchy midrange, good bass, a very good 6550 second only to Tungsol 6550 in overall sound and drastically superior to Svetlana or Sovtek 6550)

- ARC VT60, ARC VT100 MarkII and MarkIII, Ref. 300, Ref. 600
- Audio Research Reference 3 line-stage power supply
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- Rogue
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- CJ Premier 8 and 11A, 12
- Jadis
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- McIntosh 275 MK IV 2005
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See more: vacuum tube

Tags: 1985, 6550, 6550A, Conrad Johnson, GE, JAN, power tubes, VTL

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