(6n1n, 6n1n-EB)

**General
Pentode**, used in output stages of low frequency amplifiers.

Envelope: miniature glass.

Mass 20 g.

**Lead diagram**

General characteristics:

Type | 6P1P | 6P1P-EV |

Filament voltage, Volt | 6.3 | 6.3 |

Anode voltage, Volt | 250 | 250 |

1^{st} grid voltage, Volt |
-12.5 | -12.5 |

2^{nd} grid voltage, Volt |
250 | 250 |

Type | 6P1P | 6P1P-EV |

Filament (heater) current, mA | 500±50 | 460 to 525 |

Anode current, mA | 45±13 | 44±11 |

2^{nd} grid current, mA |
no more than 7 | no more than 5.5 |

1^{st} grid reverse current, mkA |
£1 | £0.5 |

Mutual conductance, mA/V | 3.8 to 6 | 3.8 to 6 |

Output power (at R_{a}=50 kΩ), W |
no less than 3.5 | no less than 3.8 |

Internal resistance, kΩ | 42.5±22.5 | 42.5±22.5 |

Vibration noise (by R_{A}=5 kΩ), mV |
£400 | £60 |

Inter electrode capacitance, pF: | ||

input | 8±1.5 | 7.5±1.7 |

output | 4.5±0.9 | 5±1 |

transfer | no more than 0.9 | no more than 0.7 |

Operation time, h | ³2000 | ³5000 |

Limited operating values:

Type | 6P1P | 6P1P-EV | ||

Filament voltage, V | 5,7-6.9 | 6-6.6 | ||

Anode voltage, V | 250 | 250 | ||

2 |
250 | 250 | ||

Cathode - heater voltage, V |
100 | 100 | ||

Cathode current, mA | 70 | 70 | ||

Anode dissipation, W | 12 | 12 | ||

2^{nd} grid dissipation, W |
2.5 | 1.3 | ||

Resistance in 1^{st} grid circuit, kΩ |
500 | 500 |

Operating environmental conditions :

Type | 6P1P | 6P1P-EV |

Acceleration of vibration loads, g | 2.5 | 6 / 10 |

by frequencies, Hz | 50 | 5-600 / 50 |

Acceleration of multiple impacts, g | 12 | 150 |

Acceleration of single impact, g | - | 300 |

Continuos acceleration, g | - | 10 |

Ambient temperature, °Ñ | -60 to +70 | -60 to +250 |

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

**Plate curves**