Tube-number record
7245
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BrandSylvania
ClassHigh-mu triode
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 400 mA
Construction
Primary TypeTriode
EnvelopeT-5 1/2
Sections1
Filament / Heater
Heater NotesHeater Voltage tolerance ±10%
Absolute Maximum Ratings
Plate Voltage150 V
Plate Dissipation2.25 W
Grid 1 Voltage-50 V
Cathode Current20 mA
H-C Voltage200 V
Audio Performance
Key Features
- Stacked mount design
- Frame type grid construction
- Reliable
- Severe shock resistance
- High temperature
- High altitude
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics | 150 V | 11000 | — | 50 | 13.5 mA |
Application Notes
The reliable Type 7245 is a high-mu triode featuring stacked mount design and frame type grid construction, characterized by long life and stable performance under conditions of severe shock and vibration.
Datasheets
Datasheet: 7245.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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