(!!!!) (Best Pair) CX-301-A Cunningham used/good 1928-1930 era (2.6ma and 2.5ma) (same Gm)
$ 69.99
1 pair) CX-301-A Cunningham used/strong 1930 era
1 tube) 2.6ma Gm=700 (1928)
1 tube) 2.5ma Gm=700 (1930 era) slightly taller glass
Good Ma range 2-3ma
NOS Gm = 800+
(Filament=5V @ 250ma, Vplate max=135V)
- Crosley C5 1926
Class A Amplifier:
-----------------
Plate Voltage = 90
VGrid No. 1 Voltage -4.5V
Amplification Factor (mu) = 8
Plate Resistance (approx) 11Kohms
Transconductance = 725mhos
Plate Current = 2.5 mA
See more: vacuum tube
Share:
 (Best Pair) CX-301-A Cunningham used/good 1928-1930 era (2.6ma and 2.5ma) (same Gm)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/2_c2dab91d-7842-4d69-803c-cede0017f639.jpg?v=1751819354){kind=link}
 (Best Pair) CX-301-A Cunningham used/good 1928-1930 era (2.6ma and 2.5ma) (same Gm) "Pin It")