(!!!!) (Best Quad) 6KG6A Westinghouse JAPAN NOS original boxes 1973 (132, 133, 138, 140ma)

1 quad) 6KG6A Westinghouse JAPAN NOS original boxes 1973 1 tube) 132ma and Gm=14,250  1 tube) 133ma and Gm=14,500 1 tube) 138ma and Gm=14,700  1 tube) 140ma and Gm=14,700   Matched on Amplitrex Vplate=200V Vscreen=160V Vgrid=-35V Good Ma rang = 100-120ma Good Gm = 12,000 - 14,000   (The EL519 replaced the EL509 and are pin compatible) MAX Plate Dissipation = 34W   Recommended for:- EAR 869 amp- Melos MAT 1000 380 watt Class A mono amps- RM Italy KVL-1000 linear amp