(!!!!) (Recommended Pair) 6L6G GE black plate coated glass NOS and like new 1954-1955 (81.5ma and 80.5ma)

1 pair) 6L6G GE black plate coated glass 1954-1955 same build

1 tube) 81.5mA Gm=6500 NOS 1954 – taller bottle – on left

1 tube) 80.5mA Gm=6300 like new 1955 – slightly more black oxide coating on glass

NOS mA 60-72ma

NOS Gm 5500-6000

(Also see 6L6GC variants: 5881 Tungsol, 7581A Philips, KT66 GEC/Genalex, EL37 Mullard)
(the EL37 Mullard and KT66 Genalex/GEC are sonically the best 6L6)
(Also see “”5932=Premium 6L6WGA””)

– Western Electric 124C amp

– Gibson