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Make your own Low Budget Bluetooth Music System || OpAmp

2014-10-31

[public] 2.88M views, 42.3K likes, dislikes audio only

channel thumbGreatScott!

Twitter: https://twitter.com/GreatScottLab

Facebook: https://www.facebook.com/greatscottlab

More project info on Instructables: http://www.instructables.com/id/Make-your-own-Low-Budget-Bluetooth-Music-System/

Previous video: /youtube/video/S6QAYTmUWOQ

Afrotechmods Class D Amp Tutorial: http://youtu.be/O1UagNkcxi4

Amplifier Kit (affiliate links):

Amazon.de: http://amzn.to/1q77lZn

Aliexpress: https://s.click.aliexpress.com/e/_d8hzM8J

Bluetooth Music receiver (affiliate links):

Amazon.de: http://amzn.to/1nVWXIa

Aliexpress :https://s.click.aliexpress.com/e/_dTUwNM7

Parts list (affiliate links):

Aliexpress:

NE5534 circuit:

1xNE5534: https://s.click.aliexpress.com/e/_dVZPIjN

3x100nF Capacitor, 1x22nF Capacitor: https://s.click.aliexpress.com/e/_d8TSem7

2x470µF Capacitor, 1x2200µF Capacitor: https://s.click.aliexpress.com/e/_d7IrB2B https://s.click.aliexpress.com/e/_dWrNxN9

1xBC637 NPN Transistor: https://s.click.aliexpress.com/e/_dVb5i6F

1xBC640 PNP Transistor: https://s.click.aliexpress.com/e/_dUX37mf

3x100k Resistor, 1x10k Resistor, 1x100 Resistor, 1x47 Resistor: https://s.click.aliexpress.com/e/_dSgNnQR

1xIC Socket:https://s.click.aliexpress.com/e/_dU34FV5

In this video I will show you how I combined an old speaker of mine with a cheap bluetooth receiver module. I made a small power amp for the speaker and put all the electronics in a hidden place. I hope you enjoy the video.

Music:

2011 Lookalike by Bartlebeats

Killing Time, Kevin MacLeod (incompetech.com)


connect ground to the minus terminal of the speaker
/youtube/video/oGTXczCV30A?t=54.319
take a look at our signal on the oscilloscope
/youtube/video/oGTXczCV30A?t=70.459999
build a basic audio amp with practically no external ports
/youtube/video/oGTXczCV30A?t=119.57
build an output stage for this amplifier
/youtube/video/oGTXczCV30A?t=171.17
added a lm7805 voltage regulator to the circuit
/youtube/video/oGTXczCV30A?t=224.78
drill two holes for the speaker wires and power wires
/youtube/video/oGTXczCV30A?t=259.25
slipped the speaker wires into the case
/youtube/video/oGTXczCV30A?t=266.31
put all the components into the ceiling
/youtube/video/oGTXczCV30A?t=341.97