Datasheet · Triode · GE·RCA

12B4A datasheet

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Key 12B4A specs at a glance

Type
Triode
Primary use
Line / Headphone
Era
19550s
Heating
indirect
Heater
12.6 V / 0.3 A
μ (amplification factor)
6.5
gm (transconductance)
6.3 mA/V
rp (plate resistance)
1.0 kΩ
Max plate voltage
300 V
Max plate dissipation
5.5 W
Base
noval
Manufacturer
GE·RCA
Equivalents
12B4

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