Tube-number record
D.P./PEN.
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BrandCossor
ClassMains Output Pentode
Filament16 V @ 250 mA
Construction
Primary TypePentode
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated, intended for series wiring
Absolute Maximum Ratings
Plate Voltage250 V
Grid 2 Voltage250 V
Audio Performance
Key Features
- Indirectly heated
- D.C. mains operation
- Capable of delivering big undistorted volume
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Characteristics | 100 V | 3500 | — | — | — |
| Typical Operation | 200 V | — | — | — | 30 mA |
Application Notes
Specifically designed for moving coil loudspeakers. For moving iron loudspeakers, a tone corrector should be employed. Screen voltage should never exceed the anode voltage.
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