Feature

●Effective Digital Filtering: The 6J1 tube pre-amp effectively filters digital flavor, providing a better listening experience for music and human voice.
●Clean Power System: The eight 470UF capacitor filter ensures a clean power system, resulting in no hum and reduced noise.
●High-Quality Coupling Capacitor: The coupling capacitor is an electrodeless electrolytic capacitor with high frequency and low resistance, enhancing the overall performance of the amplifier.
●Versatile Power Options: The kit includes both DC 5.5*2.1 socket and AC 12V transformer options, allowing flexibility in power source usage.
●DIY Assembly: This kit comes in parts, offering the opportunity to assemble the tube amplifier yourself and enjoy the building process.

Description

Description: A valve amplifier or tube amplifier is a type of electronic amplifier that uses vacuum tubes to increase the amplitude or power of a signalss. Specifications: Type: 6J1 tube (substitution model 6AK5, 6AU6, 5654 etc.)
Channel Types: 2.0 / stereo
Voltage & Current: AC12V 0.8A or above
Power Interface: 5.5 * 2.5 plug
Circuit Board Size: 77 x 75mm / 3.03 x 2.95"

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 signalss input of power amplifier.
4, Turn the knob counterclockwise to reduce the volume until you hear a "ticking" sound to shut down. Turn the knob clockwise to increase the volume until you hear a "ticking" sound to turn it on.

Package Includes:
1 x PCB Board
1 x 2W 2.2Ω Metal Film Resistor
6 x 1N4007 Large Current Diodes
6 x 4.7K Resistors
2 x 1K Resistors
4 x 47Ω Resistors
2 x 2.2K Resistors
2 x 470K Resistors
2 x 100K Resistors
2 x 200Ω Resistors
9 x 50V 470UF Capacitors
4 x 50V 1UF Monolithic Ceramic Capacitors
2 x D667 Transistors
2 x B647 Transistors
1 x 50K Potentiometer
2 x 3mm Blue LED
1 x DC005 Power Connector
2 x Tube Base
2 x 6J1 Tubes
2 x R CA Base
1 set x Standoff and Screws
1 x Potentiometer Cap