(!!!!!) (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     - Scarlett Heat- Fender- Two Rock by K&M Analog Designs, LLC- Carr Rambler- Landgraff Deluxe- MacIntosh MC240 amp- Fender Super-Sonic 2008- Emery- Swart- Leben- Fender Hot Rod Deluxe