$15.2 Buy It Now or Best Offer
free,30-Day Returns
Seller Store jgvknymwp
(17507) 99.3%,
Location: Shenzhen
Ships to: US,
Item: 263081533489
Restocking Fee:No
Return shipping will be paid by:Seller
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
MPN:Does Not Apply
Unbranded:Unbranded
Country/Region of Manufacture:China
PCB Size:10x10cm
Power Supply:Dual 12V-30V DC
Type:Tube Buffer Preamplifier Preamp Board DIY Kits
Preamplifier Board Kits:Preamplifier Board Kits
6N11 6DJ8 Tube Buffer Preamplifier Preamp Board Kits For Musical Fidelity X-10DItem Details12-30V Tube Buffer Preamplifier Preamp Board DIY Kits For Musical Fidelity X-10D Description: This is DIY Kits, Need welding its by yourself ! Not included 2pcs evacuated tube ! Output coupling capacitor Random delivery, photo only for reference ! “X10-D” Musical Fidelity tube buffer preamp board indicators: Distortion: 0.008% (10Hz~100KHz) Frequency Response: 10Hz ~ 100KHz (±0.2db) Output Impedance: 200 ohm Tubes can use 2pcs 6DJ8, 6922 or 6N11, Dual 12-30V DC power supply through the machine inside, Signal 1:1 buffer. Power Supply Introductions: Dual 12V-30V DC power supply! recommended to use regulated power supply, such as LM317,337. Filament need 12-12.6V power supply, the power supply also can be used independent of 12V, You can also directly to the 12V filament in parallel to the main power supply 12V, In this case the main power supply must dual 12V and can not use dual 15V or 18V as power supply, because if that the filament voltage will increase even damage! Of course, the filament can also be powered independently. Basic Specifications: PCB Size: 10x10cm Process: KB-level military board high precision CNC machining Materials and specifications: 1.6mm KB Kingboard A grade FR4 board “X10-D” Musical Fidelity design core introduces: 1, the output terminal using a deep negative feedback, Reached a very high index, Distortion rate dropped to a very low value. 2, the designers cleverly use 6922 (6DJ8) when the screen voltage down up to 50V, it still have a good linear and working condition, using AC 12V low voltage power supply, through the boost to ±28V power supply, can significantly prolong life and improve evacuated tube noise ratio. 3, positive and negative DC power supply, Canceled the second-stage amplifier tube cathode resistor and capacitor, Eliminating the negative impact caused by the cathode resistor and capacitor, transistors can also use all equipment components, without the use of expensive, bulky high-voltage components. Package Contents: 1set x Tube Buffer Preamplifier Preamp Board DIY Kits (Not included 2pcs evacuated tube !) About PaymentAbout DeliveryAbout ReturnsAbout FeedbackContact usAbout PaymentPlease leave note for your special request (e.g. Colors or Size) in ebay when you pay the order.Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched.About DeliveryItem will be shipped within one business day after full payment is received.Except The United States and Russia we shipped use Epack, We ship worldwide with standard shipping by Hong Kong Air mail. This international order may take longer to arrive, Normally the shipment to worldwide is used to take 35 to 40 business days, exclude Sat & Sun..Delivery time depends on destination and other factors, if you still not received it in normal days. Please don’t worry, I hope you can give me a message before you do any action.About ReturnsIf the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please contact us and double check the return address before you return it.Original and return shipping fee will not be refunded or reimbursed under all circumstances. You must agree and acknowledge this term if you bid for this item. Therefore, please do not complain about having to ship back at your own expense.Any feedback. We are committed to resolve all issues in a friendly and satisfactory manner.We always reply to ebay messages within 1-2 business days. If you do not get a response from us, then please check your ebay message. we only reply by ebay message, no send email.About FeedbackDear buyers, we appreciate your business, if you are satisfied with our service, please leave me a postive rate, Your recognition will make us more confident to develop business and serve you better. Our goal is to make sure you are a happy buyer and pleasant shopping with us.Please give us ebay message before leaving any 1 or 2 ratings, neutral, negative feedback or open any dispute. We understand the concerns and frustrations you might have, and will do our endeavor to resolve the issues. Please give us the opportunity to resolve any problem. thank you very much! And hope to see you soon.Contact usIf you have any questions, please feel free to email our service specialists 24 Hours a Day, and we will reply you ASAP. If no response within 24 Hours, please check the spam of mail box or kindly re-send it to us.We greatly appreciate your POSITIVE feedback. Please do NOT leave negative or neutral feedback without any contact. If you haven’t received item in 30 days, please contact us and we will arrange refund or resend.
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