Tube-number record
M.S./PEN
0 archive entries
M.S./PEN is a tube type in the TubeDatabase archive (class: H.F. Pentode). Recorded specifications: brand Cossor, construction Pentode, socket 7-pin (non-miniature), and maximum plate voltage 200 V. The archive does not yet hold a photographed example of this type.
BrandCossor
ClassH.F. Pentode
Base7-pin (non-miniature)
Filament4 V @ 1 mA
Construction
Primary TypePentode
EnvelopeMetallized coating
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage200 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard | 200 V | 3500 | — | — | — |
| Biased | 200 V | 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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