Tube-number record
6BN4A
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BrandRCA
ClassMedium-Mu Triode
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 0.2 mA
Construction
Primary TypeTriode
EnvelopePD-1/2
Sections1
Filament / Heater
Heater NotesUnipotential Cathode
Absolute Maximum Ratings
Plate Voltage275 V
Plate Dissipation2.2 W
Cathode Current22 mA
H-C Voltage100 V
Audio Performance
Key Features
- Medium-Mu Triode
- 7-Pin Miniature Type
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier | 150 V | 7700 | 5400 | 43 | 9 mA |
Application Notes
Used with external shield JEDEC No.316 connected to cathode.
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