My First LM3886 GC - Page 2 - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 1st June 2008, 06:10 PM   #11
sneih is offline sneih  Indonesia
diyAudio Member
 
sneih's Avatar
 
Join Date: May 2008
good luck for u!! fell happy right?
  Reply With Quote
Old 1st June 2008, 11:22 PM   #12
diyAudio Member
 
Join Date: Aug 2004
Location: Argentina
Quote:
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
  Reply With Quote
Old 2nd June 2008, 12:11 AM   #13
diyAudio Member
 
Dino-Indo's Avatar
 
Join Date: Jan 2007
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,
Attached Files
File Type: pdf lm3886 chipamp - complete circuit.pdf (15.6 KB, 384 views)
  Reply With Quote
Old 2nd June 2008, 02:01 AM   #14
Edits is offline Edits  Indonesia
diyAudio Member
 
Join Date: Feb 2008
Quote:
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
  Reply With Quote
Old 2nd June 2008, 02:28 AM   #15
sneih is offline sneih  Indonesia
diyAudio Member
 
sneih's Avatar
 
Join Date: May 2008
Quote:
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,

Quote:
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
  Reply With Quote
Old 2nd June 2008, 04:08 AM   #16
yangsmm is offline yangsmm  South Korea
diyAudio Member
 
Join Date: Jul 2006
Default I also show my LM3886 Power Amp. Module

I made LM3886 Power Amp. Modules. It support stereo output.
  Reply With Quote
Old 2nd June 2008, 11:32 AM   #17
yangsmm is offline yangsmm  South Korea
diyAudio Member
 
Join Date: Jul 2006
Unhappy I attach picture again..

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

Oh.. Picture didn't attached on the previous post, So I attach the picture.
Attached Images
File Type: jpg digihobby_410.jpg (64.3 KB, 1272 views)
  Reply With Quote
Old 2nd June 2008, 01:11 PM   #18
diyAudio Member
 
Dino-Indo's Avatar
 
Join Date: Jan 2007
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?

  Reply With Quote
Old 2nd June 2008, 02:41 PM   #19
Rave17 is offline Rave17  Netherlands
diyAudio Member
 
Join Date: May 2008
Default Re: I attach picture again..

Quote:
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?
  Reply With Quote
Old 3rd June 2008, 04:34 AM   #20
yangsmm is offline yangsmm  South Korea
diyAudio Member
 
Join Date: Jul 2006
Default you can get them...

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

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

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Psu Lm3886 Mayday Chip Amps 29 29th April 2007 06:10 PM
Lm3886 Bpa Tombson Chip Amps 99 21st August 2006 12:04 PM
Are two separate lm3886 = 2*lm3886 in parallel or bridge mode rs1026 Chip Amps 11 21st October 2004 10:24 AM
6*lm3886 Bpa Tim__x Chip Amps 1 15th August 2004 04:45 AM


New To Site? Need Help?

All times are GMT. The time now is 08:17 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2