<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title> </title> <div style="width:100%;height:100%;"> <div style="width:100%;text-align:center;height:30px;" id="title"> <span style="font-weight:bold;font-size:16px;">Optimal Newest 6J1 Tube Preamp Amplifier Board Pre-Amp Headphone Amp 6J1 Valve Preamp Bile Buffer Diy Kits(6J1 Tube Preamp Ampli</span> </div> <div id="description"> <div class="ui-box-body"> <span style="font-size:18px;"> <div> 100%Brand New and High Quality <br />Power input: AC 12V 1A 5.5*2.5 PLUG <br />Channle: 2.0/ stereo <br />Potentiometer Role: Volume adjustment + Power Switch <br /> <br />FE-6J1-2 fever tube pre-amp board is the circuit schematic design imitation crew Music fax X-10D,to be rational optimization,more stable performance than the original machine,tube play 10% increase. This board uses a single 12V AC input,the circuit processing provides 6J1 tube needed positive and negative voltage and filament power supply voltage. <br />Power works: an open power tube filament heating is started,when the boost from the zero-voltage start boosting hot filament tube,etc.,also happens to boost boosting finish,so this is the same with the guts rectification,8*470UF the capacitor filter very clean,good power supply system will not have a hum,the filament is 12V DC power supply,need two filament tube is connected in series with a DC filament also in order to reduce the noise. <br />Color as shown <br />Material: plastic + metal <br />SIZE: 77MM * 75MM * 52MM <br /> <br />Package Contents: <br />1* 6J1 tube preamp amplifier board <br />1* Transparent shell parts <br />1* Instruction manual <br />1* Screw package <br />Note: This is Diy Kits. you need do it yourself. <br /> <br />Only the above package content, other products are not included. <br />Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. </div></span> </div> </div> <div id="details"> <div class="ui-box-body"> <span style="font-size:18px;"> <table border="0" cellpadding="0" cellspacing="0" style="width: 100.0%;"> <tbody> <tr> <td style="margin: 0 auto; text-align: center;"><p></p><p></p><p></p><p></p></td> </tr> </tbody> </table> </span> <br /> <p> <br /> </p> <p> </p> </div> </div> </div></div></div>