1J37b

Multi-purpose pentode (with two control grid) for HF amplification, generation and transformation.

Envelope: sub-miniature, glass.

Mass 4 g.

General characteristics:

Type | 1J37b |

Filament voltage, Volt | 1,2 |

Anode voltage, Volt | 45 |

2^{nd} grid voltage, Volt |
45 |

1^{st 1} grid voltage, Volt |
0 |

1^{st 2} grid voltage, Volt |
0 |

Type | 1J37b |

Filament (heater) current, mA | 59±7 |

Anode current, mA | 2,55±0.85 |

2^{nd} grid current, mA |
£0,5 |

Reverse 1^{st} grid current, mkA |
£0,1 |

Mutual conductance (grid 1^{1}=1^{2}), mA/V |
1,25 |

Mutual conductance (each grid), mA/V | 0,63 |

Equivalent noise resistance, kOhm | £7 |

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

Inter electrode capacitance, pF: input | 2,25 |

output | 2,7 |

transfer | £0,008 |

Operation time, h | 5000 |

Limited operating values:

Type | 1J37b |

Filament voltage, V | 1,08 to 1,32 |

Anode voltage, V | 100 |

2^{nd} grid voltage, V |
60 |

Cathode current, mA | 4,5 |

Resistance in 1^{st} grid circuit, MOhm |
1 |

Tube temperature, °Ñ | 125 |

Operating environmental conditions :

Type | 1J37b |

Acceleration of vibration loads, g | 10 |

by frequencies, Hz | 5 to 600 |

Acceleration of multiple impacts, g | 150 |

Acceleration of single impact, g | 500 |

Continuos acceleration, g | 100 |

Ambient temperature, °Ñ | –60 to +140 |

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

1J37b curves

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