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Stereo preamplifier with tone control

Here is the circuit diagram of an excellent stereo preamplifier with tone control using the IC TDA1524 from Phillips. The IC requires very few external components, has very low noise and has a wide power supply voltage range. POTs R1 to R4 can be used for controlling the volume, balance, bass and treble respectively. LED is D1 is a power ON indica visit page.  Stereo preamplifier with tone control   
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Stereo pre-amplifiers

Circuit Diagram: Stereo pre-amplifiers Datasheet for BA3430S / BA3430F / BA3430FS: Download 
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Dual Pre-Amplifier for Car Radio

Circuit diagram: Dual Pre-Amplifier for Car Radio Datasheet for AN7310: Download
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LOW NOISE STEREO PREAMPLIFIER TDA7334

Circuit diagram: LOW NOISE STEREO PREAMPLIFIER TDA7334 Datasheet for TDA7334: Download
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Dual Low Noise Preamplifier

Dual Low Noise Preamplifier
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Stereo Preamp

Circuit Diagram: Stereo Preamp circuit diagram Datasheet for TDA7336:   Download
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