Tube Headphone Amplifier Kit, 6J1 Vacuum Electron Tube Valve Preamp Amplifier Board Headphone Amp Parts Musical Fidelity Kit AC12V 0.8A

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Product description

  • Connect the 6J1 tube pre-amp between sound source and amplifier, it will effectively filter digital flavor, the music and human voice will be relatively good. Eight 470UF capacitor filter is very clean, excellent power system lead to no hum, filaments are powered with DC 12V and need to be connected in series in order to reduce noise.
  • Coupling capacitor is electrodeless electrolytic capacitor with high frequency and low resistance. Using DC 5.5*2.1 socket and AC 12V transformer, you can also use AC 12V transformer without plug, just need to weld the power cord onto the circuit board.
  • This kit comes in parts so you can assemble them together by yourself, enjoy the process of building your own tube amplifier.
  • Instruction 1, AC 12V Input using DC 5.5*2.1 socket and AC 12V transformer, you can also use AC 12V transformer without plug, just need to weld the power cord onto the circuit board. DC power input can not be used, or it will not work. 2, Sound Channel Input Connected to mobile phone, computer, MP3, MP4 and many other music players.
  • 3, Sound Channel Output Connected to the audio input of power amplifier. 4, Power Switch Volume Knob Rotate the knob anticlockwise to turn down volume, and continue rotating until you hear the sound "tick" to power off. Rotate the knob clockwise until you hear the sound "tick" to power on and continue rotating to turn up volume.

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