(!!!!) (BEST SINGLE) 201-A Silvertone Balloon NOS 1930 era (3.8ma and Gm=750)
By Tube World
$ 57.99
201-A Silvertone Balloon NOS 1930 era original box with data sheet
3.8ma
Gm=750
NOS Ma = 2.5-3ma+
NOS Gm = 800-900
(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
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 (BEST SINGLE) 201-A Silvertone Balloon NOS 1930 era (3.8ma and Gm=750) "Pin It")