Ne5532 Phono Preamp Circuit

The NE5532 is a dual operational amplifier that is commonly used in audio applications. It is a low-noise, high-gain amplifier that is ideal for use in phono preamps. This article will provide a detailed guide on how to build a phono preamp using the NE5532. ### Parts List The following parts are required to build the phono preamp: * 1x NE5532 dual op-amp * 2x 100kΩ resistors * 2x 10kΩ resistors * 1x 1kΩ resistor * 1x 220Ω resistor * 1x 0.01μF capacitor * 1x 10μF capacitor * 1x 100μF capacitor * 1x RCA jack * 1x 3.5mm headphone jack * A piece of perfboard or breadboard * A soldering iron and solder ### Schematic Diagram The following schematic diagram shows the circuit for the phono preamp: [Image of schematic diagram] ### Construction To build the phono preamp, begin by assembling the circuit on a piece of perfboard or breadboard. The following steps will walk you through the process: 1. Solder the NE5532 op-amps to the perfboard or breadboard. 2. Solder the 100kΩ resistors to the circuit. 3. Solder the 10kΩ resistors to the circuit. 4. Solder the 1kΩ resistor to the circuit. 5. Solder the 220Ω resistor to the circuit. 6. Solder the 0.01μF capacitor to the circuit. 7. Solder the 10μF capacitor to the circuit. 8. Solder the 100μF capacitor to the circuit. 9. Solder the RCA jack to the circuit. 10. Solder the 3.5mm headphone jack to the circuit. ### Testing Once the phono preamp is built, you can test it by connecting it to a turntable and a pair of speakers. The following steps will walk you through the testing process: 1. Connect the turntable to the phono preamp using the RCA cables. 2. Connect the speakers to the phono preamp using the speaker cables. 3. Turn on the turntable and the phono preamp. 4. Play a record and adjust the volume until you can hear the music clearly. If the phono preamp is working properly, you should be able to hear the music from the turntable through the speakers. ### Conclusion The NE5532 is a versatile op-amp that can be used in a variety of audio applications. This article has provided a detailed guide on how to build a phono preamp using the NE5532. With a few simple components, you can build your own high-quality phono preamp that will improve the sound of your turntable. ## Additional Resources * [NE5532 Datasheet](https://www.ti.com/lit/ds/symlink/ne5532.pdf) * [Phono Preamp Circuit Tutorial](https://www.electronics-tutorials.ws/opamp/opamp_phono.html) * [How to Build a Phono Preamp](https://www.instructables.com/id/How-to-Build-a-Phono-Preamp/)

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