R 144
0 Tubes in archive
BrandLa Radiotechnique
ClassPentode
BaseMiniature 7 pins
Filament6.3V @ 300mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirect heating
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation2.5 W
Grid 2 Voltage300 V
Cathode Current15 mA
H-C Voltage100 V
Audio Performance
Key Features
- Long life tube
- Interchangeable with 6 AM 6
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Nominal Amplifier | 250V | 7600 | 1000000 | - | 10mA |
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