6J1 tube preamp amplifier board Pre-amp Headphone amp 6J1 valve preamp bile

Newest 6J1 tube preamp amplifier board Pre-amp Headphone amp 6J1 valve preamp bile buffer diy kits Ship to worldwide via post air mail with tracking number.s:100%Brand New and High QualityNote: This is Diy Kits.you need do it yourself.Feature:1.SIZE: 77MM * 75MM * 57MM2.Power input: AC 12V 0.8A 5.5*2.5 plug3.Channle:2.0 stereo4.Potentiometer Role: Volume adjustment + Power Switch Specification: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. 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.package include:1pc 6J1 tube preamp amplifier board Pre-amp Headphone amp 6J1 valve preamp bile bufferdiy kits SHIPPING1. Ship to worldwide. If send by post air mail usually to Europe within 15 days after sent out. 2. Orders processed within 24-48 hours of payment verification.3. The images shown are the actual item and photographed by myself. 4. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season.5. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction! PAYMENTS1. Payment must be made within 4 days of product closing. (Non-payment may result in a UPI (Unpaid Item) being put on your account. .