Author Topic: how do u install a LM386 (Read 15517 times)

j.s2ghetto · « **on:** January 30, 2008, 01:43:32 PM »

i wan to put a speaker in my psp but don't know how to wire a LM386 to make it louder and plz put pics i know you guyz are goin to say you should search but i only found tutorials to put in the speaker and leds

but i don't want leds

Thanks for the help

Maximize · « **Reply #1 on:** January 30, 2008, 02:19:16 PM »

yeah I would be interested as well

redryno1221 · « **Reply #2 on:** January 30, 2008, 02:28:17 PM »

same here this would be really helpful...

psp339 · « **Reply #3 on:** January 30, 2008, 05:51:43 PM »

Is this how u wire it??

Slimby · « **Reply #4 on:** January 31, 2008, 02:34:03 AM »

Yes.

Slimby

Maximize · « **Reply #5 on:** January 31, 2008, 04:11:51 AM »

psp speaker equals psp speaker output?

mootoo · « **Reply #6 on:** January 31, 2008, 04:38:57 AM »

U need cutoff DC

psp339 · « **Reply #7 on:** January 31, 2008, 04:23:13 PM »

what is the C thing?
so i dont have to wire it to the - of psp speaker?

Tec_ · « **Reply #8 on:** January 31, 2008, 04:45:00 PM »

i believe its a coupling capacitor

redryno1221 · « **Reply #9 on:** January 31, 2008, 05:02:44 PM »

Quote from: tec_in_the_making on January 31, 2008, 04:45:00 PM

i believe its a coupling capacitor

WTF is that?!?

Tec_ · « **Reply #10 on:** January 31, 2008, 05:33:11 PM »

google

http://en.wikipedia.org/wiki/Capacitive_coupling

psp339 · « **Reply #11 on:** January 31, 2008, 05:51:48 PM »

i just tried it with LM386 wired using the diagram i drew. it works but the sound quality is horrible. It has more bass than parallel speaker connection though. i just wired it back in parallel.

Tec_ · « **Reply #12 on:** January 31, 2008, 07:51:53 PM »

a filter cap would solve that problem

redryno1221 · « **Reply #13 on:** January 31, 2008, 09:26:23 PM »

So then where would the filter cap go in the circuit....are there any other caps we need to know about to do this mod???

CrkPyro · « **Reply #14 on:** February 01, 2008, 08:00:12 AM »

a coupling capacitor is to block dc voltages going to the speaker. it would go in between the lm386 and the speaker just like in the diagram or between the speaker and ground if you really wanted to(not the best choice).

crashman2k7 · « **Reply #15 on:** June 25, 2008, 08:06:44 PM »

Will show moc up

00G · « **Reply #16 on:** June 25, 2008, 09:08:01 PM »

This may help...

crashman2k7 · « **Reply #17 on:** June 25, 2008, 09:17:54 PM »

goona put up a moc up of how it works =)
Hope this help who so ever needed it =)

http://ca.youtube.com/watch?v=r17_7ujoMt0

psp339 · « **Reply #18 on:** June 25, 2008, 10:03:32 PM »

Where can I get that 100 uf capacitor?
EDIT: I found some 100uF capacitors but how many volts do I choose?

crashman2k7 · « **Reply #19 on:** June 25, 2008, 10:15:57 PM »

Quote from: psp339 on June 25, 2008, 10:03:32 PM

Where can I get that 100 uf capacitor?
EDIT: I found some 100uF capacitors but how many volts do I choose?

\
i found this in a walky talky it a 6.3v

psp339 · « **Reply #20 on:** June 26, 2008, 12:47:06 AM »

I saw some 6v on mouser. I'm gonna order one next time I get some LEDs.
Thanks

crashman2k7 · « **Reply #21 on:** June 26, 2008, 01:47:25 AM »

ill take a video of my rc card =) wid the LM386

j.s2ghetto · « **Reply #22 on:** June 26, 2008, 07:19:26 AM »

OMG now u guys tell me after i gave up on this LOL JK i might do this now

crashman2k7 · « **Reply #23 on:** June 26, 2008, 11:04:21 AM »

Quote from: j.s2ghetto on June 26, 2008, 07:19:26 AM

OMG now u guys tell me after i gave up on this LOL JK i might do this now

lol dude so sorry but i only get motivated to mod my stuff when am bored XD and last nite i look at my 3000$ R/C drifter and am like i want it to have a cool sound system! But how will this mini mp3 power 2 3watt 8ohm speaker
so i toke the same LM386 setup , i toke appart 1 of my walky talky find a 100uF 6.3v cap wired it up and BAM the Buzzing was gone! and i had a sick ass rc car =) ill post a videa later of it

anthonyta · « **Reply #24 on:** June 27, 2008, 03:22:10 PM »

i have a 100uF 10v capacitor will that work?

crashman2k7 · « **Reply #25 on:** June 27, 2008, 04:24:28 PM »

well try to match the amouth ur giving it
so if ur using 5v use a 5v
if ur using a 9v battery use a 9v lol

Blazinkaos · « **Reply #26 on:** August 01, 2008, 12:48:24 AM »

Where can u find these LM386. Can i find them in radios or something...

Jumbo · « **Reply #27 on:** August 01, 2008, 05:34:51 AM »

How dont you know what a LM386 is?

If you really done know then wow........

Get them at radioshack there like 2$

Oh and Another Random Bump?

Stop bumping old things randomly....

DubbleDutch · « **Reply #28 on:** August 01, 2008, 05:40:18 AM »

Stereo (just put a speaker where the Leds are)

Mono (just put a speaker where the Leds are)

anthonyta · « **Reply #29 on:** August 01, 2008, 09:50:18 AM »

so the 5v and ground goes to the speaker output on the mobo instead, correct? isn't where you put the speakers the input to the lm386? that would make everything go backwards. it still amplifies?

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Author Topic: how do u install a LM386 (Read 15517 times)