Feature

●IMPROVE SOUND QUALITY: Connect the 6J1 tube preamp between the audio source and the amplifier, the digital distortion is effectively eliminated, the music quality and the human voice is more clear
●CLEAN AND NOISE FREE: Equipped with 8 470UF capacitors for superior power filtering, this preamp ensures a clean, hum-free audio experience. Filament is powered by DC 12V to reduce unwanted noise
●High Quality Components: Coupling condenser is electrode electrolytic capacitor with high frequency performance and low resistance, which contributes to excellent audio signal transmission
●MULTIPLE POWER OPTIONS: This kit includes a DC 5.5*2.1 socket to provide power from an AC 12V transformer. By soldering the power cord to the circuit board, you can also use an AC 12V transformer without plug, which is more flexible
●DIY Assembly: This kit is made up of parts so you can enjoy the satisfying process of building your own vacuum tube amplifier. Discover the fun of creating audio equipment


Description

Specifications:
Type: 6J1 Tubing (Alternate models 6AK5, 6AU6, 5654, etc.)
Channel Type: 2.0/Stereo
Voltage current: AC 12 V 0.8 A or higher
Power Interface: 5.5 * 2.5 Plug
Circuit Board Size: 77 x 75mm/3.03" x 2.95"

Description:
1. AC 12V input: With DC 5.5*2.1 socket and AC 12V transformer, you can use AC 12V transformer without plug. Simply weld the power cord to the circuit board. DC power input can not be used or worked.
2, Sound channel input: connect to mobile phone, computer, MP3, MP4 and many other music players.
3, Sound Channel Output: Connect to the power amplifier audio signal input
4, Power Switch/Volume Knob: Turn the knob counterclockwise to lower the volume and turn it off until you hear a "clicking". Turn the knob clockwise until you hear a "clicking" sound to turn on and continue to rotate the volume up.

Package Includes:
1 x PCB Board
1 x 2W 2.2Ω Metal Film Resistor
6 x 1N4007 High Current Diodes
6 x 4.7K Resistance
2 x 1K Resistance
4 x 47Ω Resistance
2 x 2.2K Resistance
2 x 470K Resistance
2 x 100K Resistance
2 x 200Ω Resistance
9 x 50V 470UF Capacitor
4 x 50V 1UF Monolithic Ceramic Capacitors
2 x D667 Transistors
2 x B647 Transistor
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 of standoffs and screws
1 x Potentiometer Cap