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LM1876 + TL082 operational amplifier front amplifier board

LM1876 is a high-fidelity two-channel audio amplifier produced by National Semiconductor in the United States, with 30W per channel. The total harmonic distortion plus noise (THD + N) is only 0.112% at 30W * 2, and the signal-to-noise ratio is as high as 102dB.

This board is a well-tested finished board. And comes with the front level, do not add the front level. Go back and install the heat sink(Recommended 1 Jin) Connect transformer(Double 12V to double 21v recommended double 18V) OK

The biggest feature of this board is that it is cost-effective and easy to install and copy!

LM1876 is equivalent to the merging of two reduced versions of LM3886. The conversion rate is as high as 19V/us, which is the same as LM3886. It is zui high in integrated power amplifier. Its sound quality orientation is warm, delicate and has high resolution level. You are familiar with it!

Operating voltage: AC12X2 to AC21X2 recommended double 18V

size: 113mm * 71mm
height: 30mm

Materials for this board:

LM1876TF: pure imported disassembling machine

operational amplifier: TI 082

main filter: Japan Chemical industry

protection Relay: Japan OMRON

signal circuit capacitor: Panasonic audio dedicated capacitor, Japan ENLA

resistance: military 718 metal film 1%

The wiring diagram is the same as LM4766

potentiometer prepared by yourself or ordered welded finished products in our shop

Matching domestic potentiometer purchase: https://item.taobao.com/item.htm? ft=t&id=41535549336

purchase of supporting pure imported potentiometer: https://item.taobao.com/item.htm? ft=t&id=545455729358

purchase of supporting cooling fin (open hole for delivery): https://item.taobao.com/item.htm? ft=t&id=564181481273

matching transformer purchase (80W pure copper): https://item.taobao.com/item.htm? ft=t&id=43960599105