First， the circuit parameters
Model: 6j1 tube (replaceable models 6AK5，6AU6，5654， etc.) Channel Type: 2.0 / Stereo
Working voltage: AC12V 0.8A or above
Power connector: 5.5 * 2.5 plug
Board Dimensions: Width 77 x Depth 75 x Height 57 mm
Machine weight: 87 grams (with copper pillar)
Bile before the class， bile buffer function: Add digital audio sources such as CD / VCD / DVD / MP3 / IPHONE / ipad / MID / mobile phones and other digital audio and amplifier / subwoofer / active speakers， The best mix， the kind of long listening to annoying "digital" and "transistor sound" flew away， can make the entire listening system will appear a sweet and delicate "bile" with sound mellow， sweet voice ， The characteristics of the music Sauvignon.
Power works: a power supply， the tube filament began to heat， this time starting from the zero-voltage step-up voltage， such as the filament tube heat， and step-up pressure is also just finished， so this is the same with the bile rectifier， 8 4UF Of the capacitor filter is very clean， excellent power supply system will not have AC sound， the filament is DC 12V power supply， the need for two tubes of the filament is connected in series， the use of DC filament is to reduce noise.
Coupling capacitors used in Taiwan FARAD non-polar capacitor， high-frequency low-resistance electrolytic capacitors.
Instructions:
6J1 tube buffer 0.85 times magnification， then the sound source and before the class or after the class， can effectively filter digital taste， the human voice is relatively good， bile Sauvignon， cost-effective high! Value for money!
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 power cord on the circuit board. Remember: can not use the DC power input， otherwise it does not work!
2， the channel input: the audio signal input， you can connect the phone， computer， M3， MP4， and other music players.
3， the channel output: the audio signal output， you can connect to the amplifier， power amplifier board audio signal input to the post-amplifier to provide bile
Full of music to enjoy!
4， the power switch / volume knob: the knob counterclockwise rotation just began to reduce the volume， when the volume to the minimum， if you continue to rotate until the "tick" sound， then power off， light goes out; in the off state， Turn the knob clockwise to hear "click"， the indicator light， indicating that the power is turned on， then the volume is the smallest， and then continue to clockwise rotation is to increase the volume.
