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(!) Recommended Pair) 37 RCA branded GE NOS 1946 and RCA like new 1930's (7.3ma and 8.3ma)
(!) Recommended Pair) 37 RCA branded GE NOS 1946 and RCA like new 1930's (7.3ma and 8.3ma)
$ 44.99
1 pair) 37 RCA branded GE NOS 1946 and RCA like new 1930's
1 tube) 7.3ma Gm=1100 RCA branded GE NOS 1946 NOS
1 tube) 8.3ma Gm=1100 RCA Cunningham engraved abse 1930's like new
Test parameters:
Vplate=250V
Vgrid=-18V
Iplate good range 6.5-8ma
Gm=1000-1100
(Filament=6.3V @ 300ma, many think the 37 sounds better than the 76)
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 Recommended Pair) 37 RCA branded GE NOS 1946 and RCA like new 1930's (7.3ma and 8.3ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/3_1_b4747878-1827-4ff9-a591-aa642d55a43b.jpg?v=1769200077){kind=link}
 Recommended Pair) 37 RCA branded GE NOS 1946 and RCA like new 1930's (7.3ma and 8.3ma) "Pin It")