Specifications:
Name: 6J1 Valve Tube Preamplifier Board DIY Kits
Model: 6j1 tube (can replace the model 6AK5, 6AU6,5654, etc.)
type: 2.0 / Stereo
Working voltage: AC12V 0.8A or above
connector: 5.5 x 2.5 plug
Board Dimensions: Width 77mm x Depth 75mm x Height 57mm
Features:
1.AC 12V input: DC5.5 * 2.1 socket, with AC 12V transformer, if you want to use plug-free AC 12V transformer, you need to wire the cord soldered on the circuit board. Remember: can not use input, otherwise it does not work!
2. input: for the audio signal input, you can connect the phone, computer, , MP4, and music players.
3. output: for the audio signal output, can be connected to the amplifier, amplifier board audio signal input.
4. switch / Volume knob: Turn the knob counterclockwise to begin lowering the volume. When the volume is turned to the minimum, if you continue to rotate until the "tick" is heard, the is off and the indicator is off. In the closed state, Clockwise rotation, hear the "tick", the indicator light, that has been turned on, then the volume is minimal, and then continue to clockwise rotation is to increase the volume.
How to use:
6J1 tube buffer 0.85 times enlarge, connect the sound source and the former level or after the class,
can effectively filter digital flavor, the human voice is relatively good.
Notice:This is DIY Kits, with case,you need assemble it by yourself!
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