M.S./PEN
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BrandCossor
ClassH.F. Pentode
Base7-pin (non-miniature)
Filament4V @ 1mA
Construction
Primary TypePentode
EnvelopeMetallized coating
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage200 V
Grid 2 Voltage100 V
Audio Performance
Key Features
- Indirectly heated
- No variable-mu characteristics
- Metallised coating brought out to separate pin
- Suppressor grid separate in 7-pin base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard | 200V | 3500 | - | - | - |
| Biased | 200V | 2800 | - | - | - |
Application Notes
Similar to M.V.S./PEN but without variable-mu. Suitable for use in place of ordinary screen grid valves or in detector stages for very high gain.
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