Tube-number record
E 810 F
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E 810 F is a tube type in the TubeDatabase archive (class: Wideband Power Pentode). Recorded specifications: brand Siemens, construction Pentode, base Glass, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 5 W. The archive does not yet hold a photographed example of this type.
BrandSiemens
ClassWideband Power Pentode
BaseNoval (B9A)
Filament6.3 V @ 340 mA
Construction
Primary TypePentode
EnvelopeDIN 41539, Form A, Size 40
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated, AC or DC, parallel feeding
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation5 W
Grid 2 Voltage200 V
Cathode Current50 mA
H-C Voltage100 V
Audio Performance
Key Features
- Long life (> 10000 hrs)
- Reliability (p < 1.5 per 1000 hrs)
- Tight tolerances
- Shock and vibration resistant
- Interface-free special cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 135 V | 50000 | — | — | 35 mA |
Application Notes
High transconductance broadband pentode particularly suitable for output stages in wideband amplifiers.
Datasheets
Datasheet: E810F.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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