199 In stock
Finished PCBA Amplifier Board
IWISTAO 6N3 Vacuum Tube Preamplifier Finished Board 6Z4 Pure Tube Rectifier IHIF Including Toroidal Transformer DIY
Model No: WVA-PA6N35560
This is a finished vacuum tube preamplifier board with standard SRPP circuit. The preamplifier tube uses 6N3, and the rectifier uses 6Z4 tube rectifier. The background noise is better controlled, making sound better. The board is debugging-free, simple to make and design is reasonable, the noise is relatively low, also there is no impulse current at startup, and a speaker protection circuit is added.
1. Finished Board
2. With Acrylic Plates
Due to the high input impedance of vacuum tube, it is necessary that to install it in a metal casing and grounded . This can shield unnecessary interference noises. You can simply take an iron casing or something; or connect a wire to the potentiometer handle and grounded.
Sound of the board is warm and smooth, high frequency is soft and not harsh, and human voice is intimate, sweet and smooth. The female voice is sweet, delicate, and high sound resolution.
1. Working voltage: AC220V/50~60Hz
2. Size (W * H * D): 168mm * 108mm * 72mm (including tube height)
3. Weight: about 2KG,
4. Packing list
a. Finished board x1,
b. Vacuum tube 6N3x2 (6N3 can be directly replaced by 5570 and 6H3N)
c. Vacuum Tube 6Z4x1
d. 40W toroidal transformer x1
e. Power cord x1
1. We provide you some items and components for your DIY. If you have enough capablities for circuit-reading, electronical components knowledge, assembling, soldering and problem-solving, you can buy them to enjoy DIY. If not, please don\'t buy them. We only provide limit technology support in this individial items itself.
2. The capacitances of the PCBA board may be slightly different due to lot by lot incoming, however, we can guarantee that the sound quality will not be affected. All pictures are for reference only. If you mind the term above, please don’t buy it. And if you buy, it means you accept the term above.
1.Important: Import duties, taxes and other customs related charges all are not included into shipping cost . Buyers bear all responsibility for all extra charges incurred (if any).
2. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address. We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
3. When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
4.Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound. The shipping rate can be showed at the Checkout page. There are two options for shippig as below.
A. Standard Shipping(≤2KG): The Post Registered Air Mail, USPS/ePacket, PostNL, Singapore Post, or DHL Global Mail
B. Express Shipping: EMS, DHL, UPS , or Fedex, Special Route.,etc. For faster shipping and smooth transaction, we will change the shipping company among themC. Economy Shipping: China Air Post Mail / Parcel, Hongkong Air Post Mail / Parcel, or shipment by sea etc
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
1. One year Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.2. Defective items MUST BE reported and returned within the warranty period (with the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY. You agree to all of the above-listed policies upon ordering on our store.