<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><div class="desc"> <div style="width: px; line-height:150%; font-family:Arial, Helvetica, sans-serif; font-size:12px;"> <p style="margin-bottom:6px; margin-top:6px;"></p> <p> 6J1 Vacuum Electron Tube Valve Preamp Amplifier Board Headphone Amp Parts Musical Fidelity Kit </p><div style="font:Arial;font-size:16px;"><p><b>Specification:</b></p>Description: <br/>A valve amplifier or tube amplifier is a type of electronic amplifier that uses vacuum tubes to increase the amplitude or power of a signal. Connect this 6J1 tube pre-amplifier between sound source and and it can effectivelyfilter digital flavor. Tube amplifier produces a warmer or more natural valve sound, make music and human voice is relatively good. </div><div style="font:Arial;font-size:16px;"><br/>Features: <br/>Connect the 6J1 tube pre-amp between sound source and amplifier, it will effectively filter digital flavor, the music and human voice will be relatively good.<br/>Eight 470UF capacitor filter is very clean, excellent power system lead to no hum, filaments are  powered with DC 12V and need to be connected in series in order to reduce noise. <br/>Coupling capacitor is electrodeless electrolytic capacitor with high frequency and low resistance. <br/>Using DC 5.5*2.1 socket and AC 12V transformer, you can also use AC 12V transformer without plug, just need to weld the power cord onto the circuit board. <br/>This kit comes in parts so you can assemble them together by yourself, enjoy the process of building your own tube amplifier.</div><div style="font:Arial;font-size:16px;"><br/>Specifications: <br/>Type: 6J1 tube (substitution model 6AK5, 6AU6, 5654 etc.)<br/>Channel Types: 2.0 / stereo<br/>Voltage & Current: AC12V 0.8A or above<br/>Power Interface: 5.5 * 2.5 plug<br/>Circuit Board Size: 77 x 75mm / 3.03 x 2.95"</div><div style="font:Arial;font-size:16px;"><br/>Instruction: <br/>1, AC 12V Input: using DC 5.5*2.1 socket and AC 12V transformer, you can also use AC 12V transformer without plug, just need to weld the power cord onto the circuit board. DC power input can not be used, or it will not work.<br/>2, Sound Channel Input: Connected to mobile phone, computer, MP3, MP4 and many other music players.<br/>3, Sound Channel Output: Connected to the audio signal input of power amplifier.<br/>4, Power Switch/Volume Knob: Rotate the knob anticlockwise to turn down volume, and continue rotating until you hear the sound "tick" to power off. Rotate the knob clockwise until you hear the sound "tick" to power on and continue rotating to turn up volume.</div><div style="font:Arial;font-size:16px;"><br/>Package Includes:<br/>1 x PCB Board<br/>1 x 2W 2.2Ω Metal Film Resistor<br/>6 x 1N4007 Large Current Diodes<br/>6 x 4.7K Resistors<br/>2 x 1K Resistors<br/>4 x 47Ω Resistors<br/>2 x 2.2K Resistors<br/>2 x 470K Resistors<br/>2 x 100K Resistors<br/>2 x 200Ω Resistors<br/>9 x 50V 470UF Capacitors<br/>4 x 50V 1UF Monolithic Ceramic Capacitors<br/>2 x D667 Transistors<br/>2 x B647 Transistors<br/>1 x 50K Potentiometer<br/>2 x 3mm Blue LED<br/>1 x DC005 Power Connector<br/>2 x Tube Base<br/>2 x 6J1 Tubes<br/>2 x RCA Base<br/>1 set x Standoff and Screws<br/>1 x Potentiometer Cap</div> <p style="margin-bottom:6px; margin-top:6px;"> </p><p style="margin-bottom:6px; margin-top:6px;"><br/></p> <p><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><!--#list--><!--#if--></p><div style=" margin-bottom:6px; margin-top:6px;"> </div> <p class="STYLE1"><u>Shipping:</u></p> <p>1.We guarantee to ship goods out within 24-72 hour after payment confirmation except holiday.<br/> 2.We ship by China post,HKpost EMS,DHL,Fedex,according to your choice when placing orders .<br/> 3.If you didn't receive the item after 45 days,please feel free to contact us.We will make all our effort to resolve the problem.<br/> 4.We are not responsible for delays causedby the customs,Import duties,taxes or other customscharges.</p> <p class="STYLE1"><u>Warranty:</u></p> <p>1.All items have 1 year guarantee.IF your purchase do not meet merchantable quality, fitness for purpose or match the description, We can make sure your issues are resolved .<br/> 2.For wrongly-shipped items, Please contact us in 48 hours after delivery.We will arrange to deliver the correct items or return all your payment.<br/> 3.For defective or faulty products,please take photos or videos,we would resend or refund after confirmation. </p> <p style="margin-top:6px;"></p> </div></div></div></div>