RVD 133
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BrandRadio Valve Company Limited
ClassHigh-mu Triode Audio Preamplifier
BaseSmall Button 7-Pin
Filament6.3V @ 300mA
Construction
Primary TypeTriode
EnvelopeT-5 1/2
SectionsSingle
Filament / Heater
Heater NotesA.C. or D.C.
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation0.5 W
H-C Voltage90 V
Audio Performance
Typical THD5%
Key Features
- Low hum
- Miniature
- High-mu
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier | 100V | 1250 | 80000 | 100 | 0.5mA |
| Class A1 Amplifier | 250V | 1600 | 62500 | 100 | 1.2mA |
Application Notes
Particularly suitable for audio preamplifier use. Hum level referred to grid: 2.0 uV with bypassed cathode resistor.
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