Tube-number record
D.S./PEN.
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BrandCOSSOR
ClassMAINS H.F. SCREENED PENTODE
Base7-pin (non-miniature)
Filament16 V @ 0.25 mA
Construction
Primary TypePentode
EnvelopeMetallised
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage200 V
Grid 2 Voltage100 V
Audio Performance
Key Features
- Indirectly heated
- Screened pentode
- Metallised coating
- Suppressor grid brought to separate pin in 7-pin version
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard | 200 V | 3000 | — | — | — |
| Standard with bias | 200 V | 2300 | — | — | — |
Application Notes
Used in place of ordinary screen grid valve or in detector stages for high gain and low damping.
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