LM386 based portable audio amplifier
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Uploader Comments (lolcheesecake)
All Comments (12)
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Sounds pretty loud?
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Well first, I built it on some proto-board, the stuff with the copper lines on it, and the noise was incredible. Some other problems I had were with using a socket or not, and I could never get the National Semiconductor chips to work. My circuit worked with another manufacturer's 386. Look for a KA386 if you want an alternative. The variation of the circuit that I built is the bass boost version. Works quite well with the 5 watt speaker I have in that thing.
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hey what was wrong with all your previous attempts? and what did you change to fix it. Im about to start building my 4th attempt haha. So, breadboard or protoboard, spread out or close together components, impedance of speaker, did you really "ground" it or is it just to the negative battery terminal, what gauge wires, and which of the schematics did you follow (20 gain no bypass, 200 gain bypass, bass boost, etc.)? Thanks
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wow, kinda gay, kinda real gay
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I don't give a shit you flat-fuck
MrDixiepride1234 7 months ago
@MrDixiepride1234 cool, only took you 2 weeks to come up with that brilliant response
lolcheesecake 7 months ago
you sound like a nerdy fag and you listen to some pretty gay music
MrDixiepride1234 7 months ago
@MrDixiepride1234 lol, you think I give a shit if you don't like my music?
lolcheesecake 7 months ago
Whoops that was my other account but that's still me. By the way, running this thing with 4 AA batteries is giving it an incredible battery life. I'm using 4 rechargeable NiMH's, still on the first charge since I built this thing, and I use it an hour or two every day.
lolcheesecake 1 year ago
can you make a video how to make
cambigfoot88 2 years ago
The schematic can be found on the national semiconductor LM386 page, and the only thing else you need to do is build a case and mount the speaker, batteries, switches, etc.
lolcheesecake 2 years ago