Tube-number record
8213
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BrandSYLVANIA
ClassTriode
BaseSubminiature
Filament6.3 V @ 380 mA
Construction
Primary TypeTriode
EnvelopeT-3
SectionsSingle
Filament / Heater
Heater NotesParallel or Series connection
Absolute Maximum Ratings
Plate Voltage300 V
Grid 1 Voltage-40 V
Cathode Current50 mA
H-C Voltage200 V
Audio Performance
Key Features
- Subminiature
- Long life
- Severe shock resistance
- High temperature operation
- Stable performance
- Unipotential cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics | 105 V | 23000 | 1348 | — | 23 mA |
Application Notes
The Type 8213 is a subminiature medium mu triode intended primarily for cathode follower applications. It is characterized by long life and stable performance under conditions of high altitude, severe shock, vibration, and high temperature.
Datasheets
Datasheet: 8213.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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