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4J1L / 4Zh1L tube
4J1L / 4Zh1L tube
Manufacturer
4J1L / 4Zh1L tube
4J1L / 4Zh1L tube
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Russian 4J1L / 4Zh1L HF pentode tube.

  • Name: 4J1L
  • Type: pentode
  • Application: power and voltage amplification, RF oscillation up to 200MHz
  • Cathode type: oxide, indirect heating
  • Envelope: glass, screened
  • Mass, g: 35
  • Filament voltage, V: 4.2
  • Filament current, A: 0.21-0.24
  • Anode voltage, V: 150
  • Anode current, A: 0.0014-0.0033
  • Anode power, W: 2
  • Grid1 voltage, V: minus 2.1
  • Grid2 voltage, V: 75
  • Grid3 voltage, V: 0
  • Steepness, mA/V: 1.2-2.1
  • Microphnic noise, mV: 150
  • Socket type: rsh7
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