Tube-number record
RVD 133
0 archive entries
RVD 133 is a tube type in the TubeDatabase archive (class: High-mu Triode Audio Preamplifier). Recorded specifications: brand Radio Valve Company Limited, construction Triode, socket Miniature 7-pin (B7G), maximum plate voltage 300 V, and maximum plate dissipation 0.5 W. The archive does not yet hold a photographed example of this type.
BrandRadio Valve Company Limited
ClassHigh-mu Triode Audio Preamplifier
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 300 mA
Construction
Primary TypeTriode
EnvelopeT-5 1/2
SectionsSingle
Filament / Heater
Heater NotesA.C. or D.C.
Absolute Maximum Ratings
Plate Voltage300 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier | 100 V | 1250 | 80000 | 100 | 0.5 mA |
| Class A1 Amplifier | 250 V | 1600 | 62500 | 100 | 1.2 mA |
Application Notes
Particularly suitable for audio preamplifier use. Hum level referred to grid: 2.0 uV with bypassed cathode resistor.
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