DOUBLE DIODE OUTPUT PENTODE
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BrandMullard
ClassOutput Pentode
BaseOctal
Filament44.9V @ 0.2mA
Construction
Primary TypePentode
EnvelopeST
SectionsDouble Diode Output Pentode
Filament / Heater
Heater NotesSuitable for DC/AC operation
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation9 W
Grid 2 Voltage250 V
Grid 1 Voltage-1.3 V
Cathode Current70 mA
H-C Voltage125 V
Audio Performance
Typical THD10%
Power Output4 W
Key Features
- High-sensitivity
- DC/AC operation
- Double diode combined
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A | 200V | 8000 | 35000 | - | 45mA |
Application Notes
High-sensitivity output pentode for use in A.C. mains-operated equipment, combined with twin diodes.
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