My First LM3886 GC

[sneih]

good luck for u!! fell happy right?

[samsagaz]

Originally posted by Puffin
samsagaz. Build a simple gainclone first, get to know the pin layouts intimately. Then start to experiment with different resistor feedback values, cap values etc.

I have just spent the best part of 2 days trying to make my second bridged gainclone (first was with LM3886's, this time with LM3875's). No sound, then lots of noise, then no signal input, rebuilt the thing 5 times ! Just got it working and it sounds fantastic (of course) I can go and eat now !.

well, i already made an GC, but not from the sctatch like im trying now

[Dino-Indo]

Hi Sneih..

Please find attached the schematic that I got from Mr. Alex P of langsungjadi.com...

Hopefully it would be useful for your reference,

Kind Regards,

[Edits]

my problem:
honestly i have 3-4 part that they included but not in pcb....
n i dont know how to install them

R4 and C4 put in series are feedback. You don't have to use those. I think you use a single feedback resistor (in this case R5) OR try R4+C4 in place of R5.

Other components you mention are clearly marked on the image attached by dino-indo. As of C9 and C10 you can try different values: starting with 100,120,220,1000 even 2200 uF

[sneih]

Originally posted by Dino-Indo
Hi Sneih..

Please find attached the schematic that I got from Mr. Alex P of langsungjadi.com...

Hopefully it would be useful for your reference,

Kind Regards,

Originally posted by Edits


R4 and C4 put in series are feedback. You don't have to use those. I think you use a single feedback resistor (in this case R5) OR try R4+C4 in place of R5.

Other components you mention are clearly marked on the image attached by dino-indo. As of C9 and C10 you can try different values: starting with 100,120,220,1000 even 2200 uF

thx friends 4 ur support

[yangsmm]

I made LM3886 Power Amp. Modules. It support stereo output.

[yangsmm]

I made LM3886 Power Amp. Modules. It support stereo output.

Oh.. Picture didn't attached on the previous post, So I attach the picture.

[Dino-Indo]

Hi Edits..

Really appreciate your post...
Guess you also built one using the same PCB?



Hi Yang!

Nice PCB !! and truly simple layout...
How much does it cost?
Wonder whether I can purchase it from Indonesia?

[Rave17]

Originally posted by yangsmm
I made LM3886 Power Amp. Modules. It support stereo output.

Oh.. Picture didn't attached on the previous post, So I attach the picture.

The lay-out of the PCB looks really clean Where did you get it from, made it yourself?

[yangsmm]

Everyone can get it from the below sites and can check the whole specs.

English : www.digi-hifi.com
Korean : www.digihobby.co.kr