Tube-number record
443
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ClassOutput Pentode
BaseB5 family
Construction
Primary TypePentode
EnvelopeGlass
Filament / Heater
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation5 W
Grid 2 Voltage200 V
Audio Performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A | 250 V | 2000 | 40000 | — | 20 mA |
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