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» Vacuum tubes by use » POWER / OUTPUT tubes » 4P1L / 4L1S / 4LS1 / RL2 / 4P6 tube
4P1L / 4L1S / 4LS1 / RL2 / 4P6 tube
Manufacturer: Svetlana factory
$10.00/ea
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Russian audiophile 4P1L tube with direct heating & lowest anode voltage. The pentode is fine up to 100 Mc/s. Made by SVETLANA plant. Equivalent to the 4L1S / 4LS1. Copy of RL2 / 4P6 Wehrmacht tubes.

  • Name: 4P1L;
  • Type: pentode;
  • Application: oscillation and power amplification up to 100MHz;
  • Cathode type: oxide,direct heating;
  • Envelope: glass;
  • Mass, g: 35;
  • Filament voltage, V: 2,1/4,2;
  • Filament current, A: 0,65/0,325;
  • Anode voltage, V: 150;
  • Anode current, A: 0,06;
  • Anode power, W: 7,5;
  • Grid2 voltage, V: 150;
  • Grid3 voltage, V: 0;
  • Steepness, mA/V: 4,5-7,8;
  • Microphonic noise, mV: 500;
  • Socket type: rsh7.


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