Tube-number record
7496
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BrandBrimar
ClassVari-mu R.F. Pentode
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 0.3 mA
Construction
Primary TypePentode
EnvelopeT-5 1/2
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesPure tungsten heater designed for frequent switching
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation3 W
Grid 2 Voltage135 V
H-C Voltage150 V
Audio Performance
Key Features
- Rugged electrode construction
- Semi-automatic assembly techniques
- Low catastrophic failure rate
- Cathode interface resistance inhibition
- Pure tungsten heater
- Low inter-electrode capacitance change
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 250 V | 4400 | 1000000 | 24 | 11 mA |
Application Notes
The 7496 is designed for R.F. and I.F. applications where high reliability and stable characteristics are required. Special cathode alloy prevents interface resistance growth during long cut-off periods.
Datasheets
Datasheet: 7496.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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