Music Circuit

Thread Starter

sajelectric

Joined Aug 19, 2011
15
Hi,
I am looking for a simple music circuit for my projector which works on 12V dc
Can anybody provide me a simple circuit with parameters.
Thanks
 

russpatterson

Joined Feb 1, 2010
353
Like you want it to play music? Like MIDI notes or sampled music (MP3's)? You want it to just be an amplifier that you plug an mp3 player into?
 

wayneh

Joined Sep 9, 2010
17,498
Yes, I just want to play music. like the one we generate music using UM66.
But the circuit has to work using an input 12V
Just use a resistor voltage divider to drop the 12v down to 3-4V for the UM66. Set the current in the divider to, say, 1.2 mA. That gives you a total resistance of 10K. The current drawn by the UM66 is no more than 60µA, so it will have little effect on the voltage divider.
 
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