View source for Acoustic to Electrical instrument converter (Project 0036)

<small>by Clip-on Electrifier </small>
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[[Category:Projects|Acoustic to Electrical instrument converter]]

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== Project Overview ==

This device uses a piezo pick-up to convert vibrations from instruments into an electrical signal. The signal is then run through a pre-amp, an Electra distortion pedal, a Super Hard-On pedal, a bandpass filter, and a buffer in series to achieve an amplified signal with the signature fuzzy effect associated with electric instruments. Finally, the signal is played through a speaker.

{{#widget:gallery|img1=https://drive.google.com/thumbnail?id=13OYqQcZBl05Fw-gDFzVEr6fr5d_KbzYD&sz=w1000|img2=https://drive.google.com/thumbnail?id=1zA89oNKxcfn1Wu4QTC_AUe-x0aCOCPSd&sz=w1000|img3=null|img4=null|img5=null|num=3}}

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== Tools and Materials ==
* 1N4148 diodes * 4
* capacitors with various capacitance
* resistors with various resistance
* BS170 transistor
* 2N3904 transistor
* LF411 Op-amp * 3
* 5k potentiometer
* Piezo vibration sensor
* speaker


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== Project Files==
* [https://drive.google.com/open?id=1qZC8XvPqBJCLa5bVqyTONIobDTjPD3n1 electra_sch.jpg - Yiming Xia.webp]
* [https://drive.google.com/open?id=1m2m5XskqHGwPyHhFWwK55hayNPzBh7aV sho-with_bom (1) - Yiming Xia.png]
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== Step-by-Step Instructions ==

{{#widget:ProjectStep|inst=connect the piezo pickup tightly to the instrument, and check if we get a signal|show=none|src=none}}
{{#widget:ProjectStep|inst=Send the signal through a pre-amplifier to boost it to approximately 1 volts peak-to-peak|src=1730HnMAcyd_rK97JVfVwxLGQjXM6jsjt|show=img}}
{{#widget:ProjectStep|inst=Pass the signal through an Electra distortion pedal, where it is amplified again to approximately 5-6 volts, and the fuzz effect is introduced via a hard diode clipping stage.|src=19TPARO0l4LSx9kHonGow6aJnaZAc3Fql|show=img}}
{{#widget:ProjectStep|inst=Send the signal through a Super Hard-On pedal, which acts as a clean amplifier with variable gain and very high input impedance. The signal we get out of the Super Hard-On is amplified without changing its original shape.|src=1a2o8GVOddG3LkU69lOVBQtr2jBtEvftL|show=img}}
{{#widget:ProjectStep|inst=Run the signal through a bandpass filter to reduce noise. Note: the cutoff frequencies are determined by the specific instrument you want to convert.|src=1LpRO0XH5s29zM8BsqGfGMkuIvtPKGW5r|show=img}}
{{#widget:ProjectStep|inst=Use a buffer to isolate the load (speaker) from the main circuit. And play the final signal through the speaker.|src=1tBlniSD0KVeqRVh3d_cbR0qFwdoCp1yQ|show=img}}

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