6L6G

General

**Tetrode**, used in output stages of low frequency amplifiers.

Envelope: glass, with octal base.

Mass 70 g.

Lead diagram

General characteristics:

Type | 6L6G |

Filament voltage, Volt | 6.3 |

Anode voltage, Volt | 250 |

1^{st} grid voltage, Volt |
-14 |

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

Type | 6L6G |

Filament (heater) current, mA | 900±90 |

Anode current, mA | 72±18 |

2^{nd} grid current, mA |
no more than 9 |

1^{st} grid reverse current, mkA |
£ 3 |

Cathode current, mA | no less than 275 |

Output power, W | no less than 5.4 |

Mutual conductance, mA/V | 5.2 to 6.8 |

Internal resistance, k? | 25 |

Inter electrode capacitance, pF: | |

input | 11±2 |

output | 8.2±1.5 |

transfer | no more than 1 |

Operation time, h | ³ 1000 |

Limited operating values:

Type |
6L6G | ||

Filament voltage, V | 5,7-7 | ||

Anode voltage, V | 375 | ||

2^{nd} grid voltage, V |
300 | ||

Cathode - heater voltage, V | 100 | ||

Cathode current, mA | - | ||

Anode dissipation, W | 20 | ||

2^{nd} grid dissipation, W |
2.75 | ||

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

Operating environmental conditions :

Type | 6L6G |

Acceleration of vibration loads, g | 1.5 |

by frequencies, Hz | 50 |

Acceleration of multiple impacts, g | - |

Acceleration of single impact, g | - |

Continuos acceleration, g | - |

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

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

Plate-grid and plate curves