45B5
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BrandRogers Majestic Electronics, Ltd.
ClassPower Pentode
BaseNoval
Filament45V @ 100mA
Construction
Primary TypePentode
EnvelopeT6-1/2
SectionsSingle
Filament / Heater
Heater NotesCoated unipotential cathode
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation12 W
Grid 2 Voltage200 V
Cathode Current100 mA
H-C Voltage200 V
Audio Performance
Typical THD10%
Power Output5.6 W
Key Features
- Power Pentode
- Indirectly heated
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A (Single Tube) | 100V | 9000 | 23000 | 8 | 43mA |
| Class A (Single Tube) | 170V | 10000 | 23000 | 8 | 70mA |
| Class A (Single Tube) | 200V | 8800 | 28000 | 8 | 60mA |
Application Notes
Commonly used in audio output stages for radio and television receivers.
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