AC 12V 6J1 Valve Pre-amp Tube Board Headphone Amplifier w/ Acrylic Case DIY Kits

Specification
Model: 6j1 tube (can replace the model 6AK5, 6AU6, 5654, etc.)
Channel type: 2.0 / Stereo
Working voltage: AC12V 0.8A or above
Power connector: 5.5 x 2.5 plug
Board Dimensions: 77mm x 75mm x 57mm

Feature
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 soldered on the circuit board. Remember: can not use DC power input, otherwise it does not work!
2.Channel input: for the audio signal input, you can connect the phone, computer, M3, MP4, and other music players.
3.Channel output: for the audio signal output, can be connected to the amplifier, power amplifier board audio signal input.
4.Power 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 power is off and the indicator is off. In the closed state, Clockwise rotation, hear the "tick", the indicator light, that power 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 magnification enlarge, connect the sound source and the former level or after the class, can effectively filter digital flavor, the human voice is relatively good.

Package include
1 x 6J1 Valve Tube Preamplifier Board DIY Kits
1 x Case

1.All major payment methods are accepted, including Apple-pay, Google-pay, Paypal, Credit cards, etc.
2.Payment must be received within 3 business days before transaction close automatically.
1.We ship to your eBay address. Please make sure address and phone number are correct.
2.Delivery time depends on destination distance and many other factors.
3.Import duties, taxes and other charges may vary, Please know about relevant laws and regulations in advance.
1.We are an international seller, however, we can't send to some countries for not supporting a direct post.
2.If you need a bulk of purchase, please feel free to contact us.
1.We will make you happy to deal with us. 
2.Do not hesitate to contact us, we serve you a 100% customer satisfaction.
3.We provide you with refund, exchange, resend or return service.
1.If you have any questions, Welcome to email us through Ebay Messages box.
2.We will reply you and resolve problems as quickly as possible.
3.Business Hours: Sun-Fri 9:00-18:00 (Beijing Time GMT+8:00).
PushAuction