**6N9S (6H9C)**

**General**

Double triodes, used as an low frequency power amplifier.

Envelope: glass.

Mass 34 g.

**Lead diagram**

**General characteristics**

Type | 6N9S |

Filament voltage, Volt | 6.3 |

Anode voltage, Volt | 250 |

Grid voltage, Volt | -2 |

Resistance in cathode circuit, Ohm | -- |

Type | 6N9S |

Filament (heater) current, mA | 300 |

Anode current, mA | 2.3 |

Reverse grid current, mkA | £1 |

Dissipate cathode-heater current, mkA | £20 |

Mutual conductance, mA/V | 1.7 |

Gain coefficient | 70 |

Vibration noise (by R_{A}=2 kOhm), mV |
£400 |

Inter electrode capacitance, pF: input |
2.5 |

output | 1 |

transfer | 4 |

Operation time, h | ³1500 |

**Limited operating values**

Type | 6N9S |

Filament voltage, V | 5,7-7 |

Anode voltage, V | 275 |

Cathode - heater voltage, V | 100 |

Anode dissipation, W | 1.1 |

Resistance in grid circuit, MOhm | 0.5 |

**Operating environmental conditions**

Type | 6N9S |

Acceleration of vibration loads, g | 2,5 |

by frequencies, Hz | 10-150 |

Acceleration of multiple impacts, g | 35 |

Ambient temperature, °Ñ | -60 to +70 |

Relative humidity at up to 40°C, % | 98 |

**Plate-grid and plate curves**

Plate curves Plate-grid curves