Dragon Tamer
Member
I tried to make an audio amplifier using the LM386 amplifier ic (wired for x200 gain) only I added some resistors to bring up the voltage for the input (a 10k to the power, and a 1k to the ground) to try to overcome the 0.7 voltage drop of the input. I am using a 12V power supply, and when I pluged my i Pod in I saw a spark and smelled something burning, so i unpluged it, the i Pod still works (bareley), but now the left head phone is louder and gets hot after a while. I think that I know what went wrong, but if you could please help me look for a place that can fix it (preferably by mail), and also look at my circuit, because it did not work too well either, even before the sparks. If it realy was x200 gain then I temprarily lost most of my hearing during the project. the only part that I left out in the circuit was the 10k pot on the input, but I did not see it to be nesccary. WHY WOULD MY BELOVED ELECTRONICS BETRAY ME?!?!?!?!
a link to the LM386 data sheet:
http://www.datasheetcatalog.org/datasheet/nationalsemiconductor/DS006976.PDF
images of the circuit and pinout:
**broken link removed**
**broken link removed**
a link to the LM386 data sheet:
http://www.datasheetcatalog.org/datasheet/nationalsemiconductor/DS006976.PDF
images of the circuit and pinout:
**broken link removed**
**broken link removed**
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