Tube-number record
5B/300-B
0 archive entries
5B/300-B is a tube type in the TubeDatabase archive (class: RF Pentode). Recorded specifications: brand Standard, construction Pentode, socket 7-pin (non-miniature), maximum plate voltage 500 V, and maximum plate dissipation 30 W. The archive does not yet hold a photographed example of this type.
BrandStandard
ClassRF Pentode
Base7-pin (non-miniature)
Filament10 V @ 800 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage500 V
Plate Dissipation30 W
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Power Amplifier Class B Telephony | 500 V | — | — | — | 35 mA |
| RF Power Amplifier Class C Telephony | 500 V | — | — | — | 35 mA |
| RF Power Amplifier or Oscillator Class C Telegraphy | 500 V | — | — | — |
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