(!!!!) (Best Value Pair) 71A RCA and Ken Rad used/good 1930's (22ma and 22.6ma)
$ 49.99
1 pair) 71A RCA and Ken Rad used/good 1930's - same top mica shape - in white boxes
1 tube) 22.0ma Gm=1700 Ken Rad slightly taller
1 tube) 22.6ma Gm=1800 RCA
Tested on Amplitrex
Vplate=180V
Vgrid=-38V
Good Ma = 20ma
Good Gm = 1600-1700
See more: vacuum tube
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 (Best Value Pair) 71A RCA and Ken Rad used/good 1930's (22ma and 22.6ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_75e65d20-331c-4d51-9324-717628b48298.jpg?v=1762540559){kind=link}
 (Best Value Pair) 71A RCA and Ken Rad used/good 1930's (22ma and 22.6ma) "Pin It")