Description
Stereo LM1875 With Preamp
The project uses two LM1875 ICs as the final amplifier, the circuit is made as simple as possible with the original circuit from the datasheet.
With a simple change using 2.2uf audiophiler input coupling capacitors.
The ne5532 is used as a non-inverting amplifier to amplify weak signals and also improve the signal quality given from the input.
I put elco 100uf and the 100nF capacitor in the strategic section to reduce noise.
The circuit use simetrical -18v CT +18v DC Voltage.
And the results of this amplifier are able to produce good sound, detail, warm and low noise.
Apr 17,2019
5,294 views
Stereo LM1875 With Preamp
Stereo amplifier using LM1875 and it use a pre-amplifier with the NE5532 OpAmp
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Published: Apr 17,2019
Download Gerber file 197
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