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Tube-number record
396A
3 archive entries
ClassTwin Triode
BaseNoval (B9A)
Filament6.3 V @ 300 mA
Construction
Primary TypeDual triode
EnvelopeT 6-1/2
Sections2
Filament / Heater
Heater NotesOperation range 280-320 mA
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation1.6 W
Grid 1 Voltage-50 V
Cathode Current20 mA
H-C Voltage100 V
Audio Performance
Typical THD10%
Power Output1 W
Key Features
- Separate cathodes
- Useful frequency range up to 800 Mc
- Low noise
- Internal shield
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 (Condition 1) | 130 V | 5400 | 6500 | 35 | 7.6 mA |
| Class A1 (Condition 2) | 150 V | 5500 | 6400 | 35 | 8.2 mA |
| Class AB1 (Max Signal) | 300 V | — | 40000 | — | 6.3 mA |
Application Notes
Suitable for use in amplifier, mixer, oscillator and multivibrator circuits.
