(!!) (Best Pair) 76 Sylvania black plate NOS mid-1940's (5.2/5.3ma) 1-2% matched
By Tube World
$ 49.99
1 pair) 76 Sylvania black plate NOS mid-1940's
1 tube) 5.2ma Gm=1300
1 tube) 5.3ma Gm=1300
Matched on Amplitrex
Vplate=250V
Vgrid=-13.5V
Good Ma range = 4.5 - 5ma
Good Gm range = 1300-1400
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