【Funtion】: This vacuum tube amplifier can 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】: Eight 470UF capacitor filter is very clean, excellent power system to no hum, filaments are powered with DC 12V and need to be connected in series in order to reduce noise. 【High Frequency And Low Proof】: The eight 470UF capacitors included in the DIY tube amplifier kit have very clean filtering, and the power system is excellent and noise-free. The filament is powered by DC 12V and needs to be connected in series to reduce noise. 【Assemble Yourself】: This diy amplifier kit comes in parts so you can assemble them together by yourself, enjoy the process of building your own tube amplifier. 【Easy To Use】: This vacuum tube amplifier uses a DC 5.5*2.1 socket and an AC 12V transformer. You can also use an AC 12V transformer. No plug is needed, just solder the power cord to the circuit board.

Features:

【Great for】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.
【Function】Eight 470UF capacitor filter is very clean, excellent power system to no hum, filaments are  powered with DC 12V and need to be connected in series in order to reduce noise. 【Practical】Coupling capacitor is electrodeless electrolytic capacitor with high frequency and low resistance. 【Portable】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. 【Application】This kit comes in parts so you can assemble them together by yourself, enjoy the process of building your own tube amplifier.

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"
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 Base
1 set x Standoff and Screws
1 x Potentiometer Cap