5BE8
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BrandRCA
ClassMedium-Mu Triode—Sharp-Cutoff Pentode
BaseNoval (B9A)
Filament4.7V @ 600mA
Construction
Primary TypeMulti-section
EnvelopeT6-1/2
Sections2
Filament / Heater
Warm-up Time11s
Heater NotesSeries heater-string arrangement
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation2.8 W
Grid 2 Voltage300 V
H-C Voltage200 V
Audio Performance
Key Features
- Series heater-string arrangement
- Internal shield
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Unit | 150V | 8500 | 5000 | 40 | 18mA |
| Pentode Unit | 250V | 5200 | 400000 | - | 10mA |
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