Tube-number record
FULL-WAVE RECTIFIER
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BrandBendix Red Bank
ClassReceiving Tubes
BaseNoval (B9A)
Filament6.3 V @ 1000 mA
Construction
Primary TypeRectifier
Rectifier TypeFull-Wave
EnvelopeNonex Hard Glass T6-1/2
Base MaterialGold Plated Nickel Pins
Sections2
Filament / Heater
MaterialUnspecified
Warm-up Time45s
Heater NotesVoltage fluctuation should not exceed +/- 5%
Absolute Maximum Ratings
Plate Voltage1450 V
Cathode Current330 mA
H-C Voltage500 V
Audio Performance
Key Features
- Reliable hard glass miniature
- Designed for aircraft, military and industrial applications
- Gold plated nickel pins
- Pressed ceramic spacers
- Resistance to thermal shock
- 45-hour run-in stabilization
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Capacitor Input Filter | 325 V | — | — | — | 100 mA |
| Choke Input Filter | 450 V | — | — | — | 100 mA |
Application Notes
Specifically designed for environments with high ambient temperatures and high levels of vibration or shock. Employs ceramic spacers instead of micas for element separation to avoid deterioration under high heat.
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