Datasheet · Triode · Western Electric
421A datasheet
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Key 421A specs at a glance
- Type
- Triode
- Primary use
- Power/Output
- Era
- 19530s
- Heating
- indirect
- Heater
- 6.3 V / 2.5 A
- μ (amplification factor)
- 5.4
- gm (transconductance)
- 15.5 mA/V
- rp (plate resistance)
- 350 Ω
- Max plate voltage
- 250 V
- Max plate dissipation
- 13 W
- Base
- octal
- Manufacturer
- Western Electric
- Equivalents
- 5998, 7236