Tube-number record
6877
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BrandBendix Red Bank
ClassLow Mu Triode
BaseNoval (B9A)
Filament6.3 V @ 800 mA
Construction
Primary TypeTriode
EnvelopeNonex Glass T6 1/2
Base MaterialGold Plated Pins
SectionsSingle
Filament / Heater
MaterialTungsten stem seal
Warm-up Time45s
Heater NotesVoltage should not fluctuate more than +/- 5%
Absolute Maximum Ratings
Plate Voltage200 V
Plate Dissipation12 W
Grid 1 Voltage5 V
Cathode Current100 mA
H-C Voltage450 V
Audio Performance
Key Features
- Hard glass bulb
- Ceramic spacers
- Multi-pillar supports
- Tungsten stem seal
- Gold plated pins
- Vibration and shock resistant
- High ambient temperature operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Voltage Regulator / Test Conditions | 100 V | 6500 | — | — | 75 mA |
Application Notes
Designed for voltage regulator circuits in aircraft, military, and industrial applications. Avoid designs where the tube is subject to all maximum ratings simultaneously.
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