Tube-number record
40 S.U.A.
0 archive entries
40 S.U.A. is a tube type in the TubeDatabase archive (class: Rectifier). Recorded specifications: brand COSSOR, construction Indirectly heated, and maximum plate voltage 250 V. The archive does not yet hold a photographed example of this type.
BrandCOSSOR
ClassRectifier
Filament40 V @ 200 mA
Construction
Primary TypeIndirectly heated
Rectifier TypeHalf-wave
Filament / Heater
Absolute Maximum Ratings
Plate Voltage250 V
Cathode Current75 mA
Audio Performance
Key Features
- Indirectly heated
- Half-wave
- For A.C./D.C. receivers
- Series running
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Half-wave rectification | 250 V | — | — | — | 75 mA |
Application Notes
Designed for series running with Cossor 13-volt 0.2 amp series of valves. Suitable for doing away with mains transformers in A.C. only sets.
Datasheets
Datasheet: 40SUA.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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