(!!!) (Best Overall Pair) 864=VT-24 Hytron USA NOS 1940's (3.5ma and 3.6ma)
$ 74.99
1 matched pair) VT-24=864 Hytron NOS 1940's original boxes
1 tube) 3.5mA Gm=500
1 tube) 3.6mA Gm=500
NOS Ma = 3 - 3.5ma
NOS Gm = 500+
(864=low microphonic, rebased and improved WD-11)
- RCA Radiola III-A 1924
See more: vacuum tube
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 (Best Overall Pair) 864=VT-24 Hytron USA NOS 1940's (3.5ma and 3.6ma) "Pin It")