Sunday, March 3, 2013

Guitar Pre-Amplifier for Arduino Microcontroler using 2N3819 JFET and Transistor 2N3904

Robometricschool. - In this moment we will show you electronic circuit or schematic diagram of Guitar Pre-Amplifier for Arduino Microcontroler using 2N3819 JFET and Transistor 2N3904. With this circuit you can implement in to real electronic device as actuate guitar signal from your guitar and connected to Arduino microcontroller.

Electronic Circuit Schematic

Figure 1. Guitar Pre-Amplifier for Arduino Microcontroller (Image Source: MonkSoundworks)


Electronic Component List:

You can see all components of this schematic from figure 1 above. For main component in this schematic are 2N3819 JFET and transistor 2N3904, all of these components used as actuating for input signal.

Circuit Performance

As input signal of this circuit is from guitar signal, 2N3819 JFET is component that will amplified the input signal with low noise and get more high signal. To make more amplified signal, this circuit completed with transistor 2N3904 that switch on and switch off the signal with infra red diode.

To isolate the pre-amplifier guitar signal with arduino microcontroler circuit, it used isolated circuit with photo transistor as receiver signal from infra red diode. Output of this circuit will connected to arduino microcontroller to processed.


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