Qusedwey Diy Kits 2P2 Electronic Tube Single Lamp Medium Wave Radio 2P3 Radio Kits

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Product description

  • DC battery 14500 lithium 3.7 and 9 volt supply, screen voltage 9V. Screen current less than 0.5mA.
  • Lamp low block illuminated red LED 2.4V supply, current limiting resistor 150 ohms. LED current 16mA.
  • Filament 2.4 volt supply 7 pins positive, 1 pin negative, 5 pins empty. Filament current 30mA.
  • Transformer impedance conversion available after low resistance 8 - 32 ohms headphone listening. No transformer can be used to listen to high resistance 2000 - 4000 ohms headphones.

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