Tube-number record
13 S.P.A.
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13 S.P.A. is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Cossor, construction Pentode, and maximum plate voltage 200 V. The archive does not yet hold a photographed example of this type.
BrandCossor
ClassPentode
Filament13 V @ 0.2 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesDesigned for series running in A.C./D.C. or D.C. receivers
Absolute Maximum Ratings
Plate Voltage200 V
Grid 2 Voltage100 V
Audio Performance
Key Features
- Indirectly heated
- High frequency pentode
- Detector of relatively high sensitivity
- Lower gain for stability
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. Amplifier | 200 V | 2500 | — | — | — |
Application Notes
Designed for use in series heater chains for A.C./D.C. or D.C. receivers. Anode decoupling resistance is usually desirable for screening and stability.
Datasheets
Datasheet: 13SPA.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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