Feature

●Coupling capacitors are electrode electrolytic capacitors with high frequency and low resistance.
●8 470UF condenser filters are very clean and have no hum, excellent power system. Filament is powered by DC 12V and must be connected in series to reduce noise.
●This kit comes with parts so you can enjoy the process of building your own vacuum tube amplifier.
●Connect the 6J1 vacuum tube preamp between the audio source and the amplifier. Effectively filter digital flavor, make music and human voice relatively good.
●With DC 5.5 * 2.1 socket and AC 12V transformer, you can also use AC 12V transformer without plug. Simply weld the power cord to the circuit board.


Description

Specifications:

Type: 6J1 Tubes (Alternate models 6AK5, 6AU6, 5654, etc.)
Channel Type: 2.0/Stereo
Voltage/Current: AC 12 V 0.8 A or above
Power supply interface: 5.5 x 2.5 plug.
Circuit Board Size: 77 x 75mm/3.03" x 2.95"

Description:
1. AC 12V input: DC 5.5*2.1 socket and AC 12V transformer, you can use the AC 12V transformer without plug. Simply weld the power cord to the circuit board. DC power input is not available or functional.
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: To lower the volume, turn the knob counterclockwise and continue to rotate until it is turned off. Turn the knob clockwise until you hear a "click" sound and continue to turn on and turn up the volume.

Package included:
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 47 Ohm Resistance
2.2K Resistance x 2
2 x 470K Resistance
2 x 100K Resistance
2 x 200Ω Resistor
9 x 50V 470UF Capacitor
4 x 50V 1UF Monolithic Ceramic Capacitors
2 x D667 Transistors
2 x B647 Transistors
50K Potentiometer x 1
2 x 3mm Blue LED
1 x DC005 Power Connector
2 x Tube Base
2 x 6J1 Tubes
2 x RCA bases
1 set x standoff and screws
1 x Potentiometer Cap