Tube-number record
8414
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BrandSYLVANIA
ClassPentode
BaseSubminiature
Filament26.5 V @ 45 mA
Construction
Primary TypePentode
EnvelopeT-3
SectionsSingle
Filament / Heater
Heater NotesDesigned for plate operation at 26.5V
Absolute Maximum Ratings
Plate Voltage55 V
Grid 2 Voltage55 V
Grid 1 Voltage-55 V
Cathode Current10 mA
H-C Voltage100 V
Audio Performance
Key Features
- Frame grid
- High transconductance
- Low grid to plate capacitance
- Shock resistant
- Vibration resistant
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| VHF RF/IF Amplifier | 26.5 V | 5000 | 50000 | — | 4.5 mA |
Application Notes
Well suited to VHF RF and IF amplifier and mixer service at 26.5-V heater and plate operation. Designed for operation under conditions of severe shock, vibration, high temperature and high altitude.
Datasheets
Datasheet: 8414.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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