(!!) (BEST VALUE) 6550A GE stapled plates NOS around 1980 (119ma) (nice single)

1 tube) 6550A GE stapled plates NOS 1980 era in white box

119ma

Gm = 10,600

(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
– Luxman
– Rogue
– Cary
– VTL MB300, MB450, ST-150
– CJ Premier 8 and 11A, 12
– Jadis
– Ampeg SVT
– Comins Alessandro Jazz Guitar Amp
– Cary SLI-80
– THD
– VAC PA100/100
– McIntosh 275 MK IV 2005
– Harmon Kardon
– Audio Aero Capitole Integrated amp