Description
(!!!!!) (BEST VALUE PAIR) 6L6GC RCA Black Plate used/good 1970-1975 (66.5ma and 67.5ma) (Gm like new)
1 matched pair) 6L6GC RCA Black Plate used/good 1970-1975 in white boxes, some scratches on each tube base, 1 tube taller than the other
1 tube) 66.5ma Gm=6000 (around 1970)
1 tube) 67.5ma and Gm=6050 (1/2″ taller glass) mid-1970’s
Matched on Amplitrex
Vplate=250V
Vscreen=250V
Vgrid=-14V
Good Ma range 60-70ma
Good Gm range 5500-6000
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