7B5
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BrandSylvania
ClassPower Output Pentode
BaseLock-In 8 Pin
Filament7V @ 0.43mA
Construction
Primary TypePentode
EnvelopeT-9
Filament / Heater
Heater NotesNominal ratings; 6.3V/0.4A typical operation.
Absolute Maximum Ratings
Plate Voltage315 V
Plate Dissipation8.5 W
Grid 2 Voltage285 V
H-C Voltage90 V
Audio Performance
Typical THD11%
Power Output3.4 W
Key Features
- Lock-in design
- Ruggedness
- Compact size
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Single-Tube Class A, Amplifier (100V) | 100V | 1500 | 104000 | - | 9mA |
| Single-Tube Class A, Amplifier (250V) | 250V | 2300 | 68000 | - | 32mA |
| Single-Tube Class A, Amplifier (315V) | 315V | 2100 | 75000 | - | 25mA |
Application Notes
Suitable for use in automobile and A-C operated receivers.
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