Vacuum Tube Stereo Amplifier Kit

Put together this Stereo RCA Vacuum Tube Amplifier kit to increase the amplitude or power of a signal for Hifi applications! Soldering Kit.

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Last Updated: 02/26/2024





  • Type: 6j1 tube(replacement model 6AK5,6AU6,5654 etc)
  • Channel: 2.0 / stereo
  • Power input:AC 12V 1 A / 5.5 * 2.5 plug
  • Power Wattage: 12W
  • Weight: 82 g
  • Switch function: the power switch/volume
  • Size:77 x 75 x 52 mm
  • 6J1 Tube Buffer 0.85 times magnification, connected between the source and before or after class, can effectively filter digital flavor.


  1. Connect 12V AC power input via the DC jack 3.5 or 5.5 * 2.1 sockets included. Use a 12V AC power adapter, if your power supply does not have a plug, you can solder the wires directly to the circuit board. Note: You can not use a DC power supply or it won't function. It must be an AC power supply.
  2. Connect the left-channel input / right channel input: audio signal input, can be connected to mobile phones, computers, MP3, MP4, and other music players.
  3. Connect the left channel output / right channel output: an audio signal output terminal can be connected to the audio signal input amplifier, power amplifier board.
  4. Turn down the power switch / volume knob: Turn the knob counter-clockwise to decrease the volume at first, when the volume is down to the minimum, keep going until it clicks, this will power off the unit and the indicator LED will be off.
  5. Turn up the knob to power on the unit after everything is connected. Turn clockwise to hear a click sound sound, the indicator LED will turn on, now turn up the dial more to increase the volume.



Are all of the parts included in this kit?
Yes. But the power supply is sold separately. Here\'s the link for the power supply I got:
Default User Icon Joseph · 09/07/2020
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