HiFi Tube Stereo Audio Headphone Amplifier, 220V power supply, black panel, screws.
This board has been welded well and tested well, do not need yourself hands welding, only need to install two black panels mounted to the PCB board, then power up.
HiFi tube amplifier, mellow and plump sound.
Eight 470UF capacitor filter, pure power supply system, no hum.
RCA (lotus seat) that little hole is not the headphone port, it was the screw holes.
Ideal for subwoofer audio conversion or assembly.
The circuit design is reasonable, low noise, low power, is a high-quality entry-level electron tube preamplifier circuit.
With LEDs on the bottom of the tubes, send out soft orange light when it is working.
Great for smartphone, computer, CD, DVD, MP3, and other audio equipments.
Turn on the power, tube filament was started heating , this time from the zero voltage boosting, after filament tube heating, voltage boosting was finished.
Material: Acrylic and PVC
Frequency range: 20Hz – 500Hz
Power adaptor: US Input: AC220V 50Hz
Output: AC18V 3A
Plug adaptor: EU 125/250V 6A
Size: Approx.11.3 * 8 * 3.3cm / 4.45 * 3.15 * 1.3inch
1 x HiFi Amplifier 220V
1 x Power Adaptor(US)
1 x Plug Adaptor(EU)
3 x Tubes
4 x Screws
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|Shipping Company||Shipping Cost||Estimated Delivery Time|
|3 - 7 days|
|3 - 7 days|
|5 - 14 days|
|Post Air Mail||Free Shipping||15 - 45 days|
|Return Policy||If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.
N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
|Seller Service||On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).|
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