Tube-number record
R43
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R43 is a tube type in the TubeDatabase archive (class: Voltage Amplifier Pentode). Recorded specifications: brand La Radiotechnique, construction Pentode, socket Special / none, maximum plate voltage 225 V, and maximum plate dissipation 2 W. The archive does not yet hold a photographed example of this type.
BrandLa Radiotechnique
ClassVoltage Amplifier Pentode
BaseSpecial / none
Filament6.3 V @ 240 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirect heating
Absolute Maximum Ratings
Plate Voltage225 V
Plate Dissipation2 W
Grid 2 Voltage225 V
Cathode Current12 mA
H-C Voltage70 V
Audio Performance
Key Features
- A longue durée
- Amplificatrice de tension
- Chauffage indirect
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Nominal | 200 V | 5500 | 800000 | 4400 | 8 mA |
Application Notes
A utiliser de préférence en polarisation automatique. Les réseaux de courbes sont identiques à ceux du tube R145.
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