Tube-number record
E 408N
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E 408N is a tube type in the TubeDatabase archive (class: Power Triode). Recorded specifications: brand Philips Miniwatt, construction Triode, maximum plate voltage 400 V, and maximum plate dissipation 12 W. The archive does not yet hold a photographed example of this type.
BrandPhilips Miniwatt
ClassPower Triode
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage400 V
Plate Dissipation12 W
Grid 1 Voltage-2 V
Cathode Current60 mA
Audio Performance
Power Output2.6 W
Key Features
- Directly heated
- Power valve
- Endstufe
- Tube final
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Normal | 400 V | 2700 | 3000 | 8.1 | 30 mA |
Application Notes
Output power measured at Grid effective voltage of 35V and load resistance of 6000 Ohms.
Datasheets
Datasheet: E408N.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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