Tube-number record
45B5
0 archive entries
45B5 is a tube type in the TubeDatabase archive (class: Power Pentode). Recorded specifications: brand Rogers Majestic Electronics, Ltd., construction Pentode, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 12 W. The archive does not yet hold a photographed example of this type.
BrandRogers Majestic Electronics, Ltd.
ClassPower Pentode
BaseNoval (B9A)
Filament45 V @ 100 mA
Construction
Primary TypePentode
EnvelopeT6-1/2
SectionsSingle
Filament / Heater
Heater NotesCoated unipotential cathode
Absolute Maximum Ratings
Plate Voltage250 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A (Single Tube) | 100 V | 9000 | 23000 | 8 | 43 mA |
| Class A (Single Tube) | 170 V | 10000 | 23000 | 8 | 70 mA |
| Class A (Single Tube) | 200 V | 8800 | 28000 | 8 | 60 mA |
Application Notes
Commonly used in audio output stages for radio and television receivers.
Datasheets
Datasheet: 45B5.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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