IWISTAO LM1875 Amplifier Finished Board with Protection Circuit Dual 12V to 22V No Including Heat Sink HIFI Audio DIY

198 In stock

Finished PCBA Amplifier Board

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IWISTAO LM1875 Amplifier Finished Board with Protection Circuit Dual 12V to 22V No Including Heat Sink HIFI Audio DIY Model No: WHFAB-1875   LM1875 is a decades-old product, why we have to play LM1875 amplifier circuit?   Because it is not airs and graces, not impulsive, not hysterical, not flourishing...
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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 LM1875 Amplifier Finished Board with Protection Circuit Dual 12V to 22V No Including Heat Sink HIFI Audio DIY

Model No: WHFAB-1875

 

LM1875 is a decades-old product, why we have to play LM1875 amplifier circuit?

 

Because it is not airs and graces, not impulsive, not hysterical, not flourishing leaves and withering flowers also, everything is so real and natural. LM1875 has been a classic of audio player for many years, making simple, but mainly warm timbre, charming, and this unit has built in a protection circuit to protect your valued speakers, don’t be worried about damaging them again.

 

Top version of this board adopted original National Semiconductor LM1875, and supply voltage from AC dual 12V to dual 22V is available. Recommend about AC dual 18V, and then gain of the circuit is about 30 times magnification.

 

WHFAB-1875(4)

 

WHFAB-1875(1)

 

WHFAB-1875(2)

 

WHFAB-1875(4)

 

WHFAB-1875(5)

 

 

Note:

1.    Its input ports are vulnerable by the introduction of outside interference to induce hum when this LM1875 PCBA not installed in a chassis and streaking. The correct connection is fitted in a metal chassis and the ground of signal source connect with the chassis, so it lead to a good shielding effect; in addition, the cable that connect potentiometer connection cable also use shielded one, if you do all above, the amplifier will be all silence even when deep night

2.    No including heat sink for this amplifier board.

 

Specifications

1. Two side Immersion Gold board.

2. PCB size: 80mm X 65mm, LM1875 IC can be laid down for soldering

 

You can match LM1036 Tone board, then the LM1875 amplifier will get far better effect as the below. And you can also buy the other matched components as below.

Tone PCBA Board Kits HIFI Audio LM1036 Equal Loudness Control Bass Treble Volume Adjustment Compact DIY Free Shipping

 

LM1036 Board

 

Matched 120W Amplifier Dedicated Toroidal Transformer 

 

120W HIFI Amplifier Dedicated Toroidal Transformer Wire Double 18V Audio for your DIY

 

WHTT120W

 

Matched Heat Sink

Heat Sink for LM1875 Amplifier Audio Radiator W78 T30 H57 No drilling Fixed Holes for Your DIY Free Shipping

Heat Sink for LM1875 Amplifier Audio W78 T30 H47 Radiator No drilling Fixed Holes for Your DIY Free Shipping

 

WHFA-HS1875

 

Applications by audiophiles (Photos only for you information)

 

WHFAB-1875(A0L)

 

WHFAB-1875(A2L)

 

WHFAB-1875(A5L)

 

WHFAB-1875(A4L)

 

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, ePacket 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

Returns 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.

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