TECH TIME !!!

[xwhateverxdudex]

How to create an operational amplifier with interference canceling for an MP3 player.



That LM741CN is a life saver.
(keep in mind you don't NEED to double the circuit, I just wanted it louder ^.^ )  

[xX Catgirl - Pierce Xx]

And that was all with components I had lying around my room.

Now to figure out how I'm going to make a travel adapter that can give me...
A 5v USB plug
A 12V supply
AND a -12V supply

^^;

What a headache v.v  

[xwhateverxdudex]

I decided to heck with it and just bought a small speaker from radio shack.

(mine didn't have enough gain, and the power supply problem was too much) >.<  

[xX Catgirl - Pierce Xx]

and it runs on batteries so no extra drain on the MP3 player >.<  

[purpleravenhawk]

Told you so.  

[xX Catgirl - Pierce Xx]

I wanted to see if I could do it, ok?
>.>

I could have just bought the parts to make one.
But I wanted something that would last longer... probably >.<  

[xwhateverxdudex]

Well I had to turn up the volume anyway, so it only lasted 6 hours.

I decided to take my charger too ^.^