Products
IWISTAO PCBA Tube Headphone Amplifier Kits HIFI WCF Solution 32~1200 Ohms Stereo Audio DIY
109 In stock
Finished PCBA Amplifier Board
To add this product to your wish list you must Sign In or Create an account
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).
IWISTAO PCBA Tube Headphone Amplifier Kits HIFI WCF Solution 32~1200 Ohms Stereo Audio DIY
Model No: WHFTA-HA009
The solution of this tube headphone amplifier adopted WCF; its work status is class A. It has a relatively low output resistance, and it can drive 32-1200 ohms headphones (recommended 50-600 ohm). There is not a big loop feedback circuit, and no need compensation capacitors.
Its sound is three-band EQ tone, timbre and sweet, smooth and natural. If you think the tube headphone is just warm and not enough detail, maybe you are wrong, it's sound details is stronger than those headphone amplifier with the most majority op amp IC.
Without tubes version (No including any tubes and a potentiometer)
With tubes version
6N6 plus 6N11
6N6 plus ECC88
The photos below are the last version, just for you information.
( Tubes of the picture above are used 6N11 X1 and 6N6 X 2 for this standard version)
Better electronic circuits and better tubes, they will lead to natural better tone. Circuit debugging is free, making it as super-simple; because the design is reasonable, there is very low noise, when switch the unit without any direct impact.
Due to vacuum tube’s high input impedance, packing and grounding shall be required, so you can block out unwanted interference noises, the easiest way is that use a small tin can as its casing.
Components selection
1. DALE resistance throughout the United States;
2. RIFA coupling capacitor (not figure Suren capacitance, pictures are for reference);
3. The filter used in all parts of Japan black gold steel brown 100U-400V high-voltage capacitors (BC capacitance 100U discontinued, pictures are for reference);
4. The gold-plated tube base holders.
Specifications
1. PCB Dimensions: 131mm X 98mm
2. The distance between the potentiometer and the headphone jack: 45mm
3. Voltage: filament AC6.3V (1A-2A) * 1 group, AC 180V - 230V * 1 group
4. Output Impedance: 32-1200 ohm (recommended 50-600 ohm)
5. Standard version for voltage amplification level is 6N11X1, output stage is 6N6X2.
6. Packing list
1). Without tubes version:
WHFTA-HA009 PCBA x 1
2) .6N6 plus 6N11 Version:
WHFTA-HA009 PCBA x 1
6N11 x 1
6N6 X2
3). 6N6 plus ECC88:
WHFTA-HA009 PCBA x 1
ECC88 x 1
6N6 X2
7. Circuit Diagram
Matched Headphone Amplifier Toroidal Transformer and Casing
Toroidal Transformer 40W HIFI AudioTube Pre-amplifier Dedicated 9 V /2A AC 30V-0-30V / 0.2A Pure Copper Amp DIY
Tube Amplifier Casing W168 H100 D229 for WHFT-5670 Whole Aluminum Matisse Circuit Silver Chasis Audio HIFI DIY
Effect picture after assembled with the casing
Shipping
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 them
C. Economy Shipping: China Air Post Mail / Parcel, Hongkong Air Post Mail / Parcel, or shipment by sea etcReturns Policy
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.
Seller Guarantees
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.Related Products
