Datasheet · Pentode · Western Electric

307A datasheet

307A / VT-225 — original PDF document from Western Electric. Free, no signup.

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Key 307A specs at a glance

Type
Pentode
Primary use
Power/Output
Era
19380s
Heating
direct
Heater
5.5 V / 1 A
gm (transconductance)
4 mA/V
rp (plate resistance)
1.5 kΩ
Max plate voltage
350 V
Max plate dissipation
15 W
Base
special
Manufacturer
Western Electric
Equivalents
VT-225, RK-75

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