Description

Valve Pre-Amplifier Board Module Kits Buffer Effector DIY Kits AC 12V Input Power Electronic Soldering Training Suite

Product Introduction:

1.Model:6j1 electronic tube

2.Sound Track Type:2.0 stereo

3.Power Input:AC 12V 0.8A/5.5*2.5 plug

4.Rotary Knob Function:power switch/volume adjustment

5.Size:77*75*52mm

Using Methods:

1.AC 12V Input:adopt DC 3.5/5.5*2.1 socket,use AC 12V power adapter;if you want to no plug AC 12V transformer,you will nees solder the power wire on the circuit board.Please note that don't use DC power input,or it won't work

2.Left/right channel input:audio signal input port,you can connect it with cellphone,computer,MP3,MP4 etc

3.Left/right channel output:audio signal output port,you can connect it with amplifier audio signal input port

4.Power switch/volume rotary knob:rotate the rotary knob anti-clockwise.it will decrease the volume;when the volume reaches the minimum,you will hear a sound if continue rotating;then the power and indicator lamp will be off;in power off state,rotate the rotary knob clockwise,there will be a sound and the indicator lamp will be on;and it represents the power is on,and the volume is the minimum;then clockwise rotate it,the volume will be decreased