HiFi Tube Headphone Amplifier 12AU7+EL500/EL504/EL519+GZ34,Class A 32-1K Ohms

Hi-Fi Tube Headphone Amplifier 12AU7+EL500/EL504/EL519+GZ34 Tube Valve Headphone AMP Head-Fi,cs Headphone Headset Unique tube headphone amplifier compatible with many tubes Powerful output with two tube stages,Can drive all headphones on the market Options (tubes are not included) 1. Plan1 : Bare PCB only 2. Plan2 : PCB + resistors + tube socket, No capacitor include, Sold as DIY kit 3. Plan3 : PCB + resistors + tube socket + capacitor,Sold as DIY kit 4. Plan4 : Finished PCB board with all components(tubes are not included), Pls contact us if you want to buy. Specifications Tubes: EL500/6P12/EL519 etc *4 ,GZ34/5AR4*1 (tubes are not included) Compatible tubes and voltage requirements: *EL504/EL500/EL510/6P12, AC 7.5V(3A)*2 for filament, AC 300V-0-300V(250ma) for plate/anode, AC 5V(3A)*1, AC 6.3V(1A)*1 *PL504/PL500, AC 29V(0.8A)*2 for filament, AC 300V-0-300V(250ma) for plate/anode, AC 5V(3A)*1, AC 6.3V(1A)*1 *PL519, AC 42V(0.8A)*2 for filament, AC 300V-0-300V(250ma) for plate/anode, AC 5V(3A)*1, AC 6.3V(1A)*1 PCB size: 130mmx285mm, Thickness 2.2mm FR4 high quality PCB with 2 Oz copper coated The default smoothing capacitor of filament is 3000UF/16V, It is for 6.3V tubes include 6P12/EL504/EL500/EL519, For other 27V or 40V tubes the capacitor should be equal or less 2000UF. Two 10H 150ma chokes are required for smoothing rectified power Warm reminder of purchase Pls plug tube into socket before soldering tube socket to PCB board, That can avoid glass of tube is damaged while plugging in after assembly. Resistors must be suspended soldered to keep space between resistor and PCB board, Because some resistor would be hot while working,Suspended installation can dissipate the heating quickly and make the amplifier works reliable This Product Designed For The senior audiophile Who can understand the circuit ,The Assembled Board will be Tested Well Before Sending ,As the knowlege of uses is different ,The incorrect assembly or damage is out of ours product warranty ,We only provide technical service ,Your purchase means you agree this statement Because purchased components may different when purchasing from supplier, Thus part of the components may have difference with pictures, But the quality and performance would be the same. This board need you have electronic technology and detectability,it’s for senior audiohile whom capable of assembling tube products only. About Chinaaudiostore We are a team composed of audio enthusiast, We are proferssional in analog and digital electric, More than just reseller. All products are sold for very reasonable and affordable price, Save every penny for you! We offer profersssional customer service and after sale service, All message will be replied within 24 hours except weekend. We try to describe products as precise and accurate as we can, You don’t have to read awful ‘Chinglish’ and guess what it means. All the audio products from China are available for sale, Pls contact us if you want anything not listed in ours store,We will offer a very reasonable price. Payment We accept payment via Paypal only. Payment must be made within 5 days, Non-payment may result in an UPI . PLEASE NOTE: a) Import duties, taxes and charges are not included in the item price or shipping and handling. These charges are the buyer’s responsibility. b) Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying Shipping Orders processed within 1-3 days upon payment received for most item,We will contact you if it is longer. If you want the item urgently,Pls contact us for express deliver,We supply DHL/FEDEX/UPS/EMS,Additional shipping cost will be charged. We only ship to confirmed Paypal addresses. Your PAYPAL address must match your Shipping address. Shipping time is determined by the carrier, It takes about 10-15 working days to US; about 10-30 working days to other countries.Transit times may be a little delayed during holiday season. If you have not received your shipment within 30 days after 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! Return Pls contact us if you receive item in damage or defective condition once item delivered to you. All returned items must be in the original packaging and you must provide us with tracking number, specific reason for the returns, and your eBay ID. We will refund you upon receipt of the item in its original condition, after both Buyer and Seller cancel the transaction from eBay. Or you may have a replacement. Return shipping is buyer’s responsibility. Services&Feedback It’s highly appreciated you leave us positive feedback and 5 star rating comments! If you are dissatisfied with item or have not received the items, please contact us for solution before leaving neutral or negative feedback, we will try our best to solve. If you have any questions, please feel free to email our service specialists 24 Hours a Day, 7 Days a Week. We will reply you ASAP. If no response within 24 Hours, please check the spam in your mail box.