(!!!!!) (Best Sylvania Pair) 6L6GC Sylvania TALL BOTTLE NOS 1970”s (79ma and 80ma) 1-3% matched

1 matched pair) 6L6GC Sylvania TALL BOTTLE NOS 1970”s same build

1 tube) 79ma Gm=5900 Sylvania branded Philips

1 tube) 80ma Gm=6200 Sylvania branded RCA

Good NOS range 60-72ma

Good NOS Gm = 6000

recommended for:

– Mesa Boogie Mark IIC+ 1980
– Mesa 400
– Two Rock K&M Ltd.
– Fender
– Ampeg B15 (B-15)
– Fender Showman 1972
– Leben
– EICO HF20