My DYI GainClone finished - Nice sound! - 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 23rd December 2008, 11:35 PM   #1
binary is offline binary  Brazil
diyAudio Member
 
binary's Avatar
 
Join Date: Mar 2005
Location: SP - Brazil
Thumbs up My DYI GainClone finished - Nice sound!

Hello,
To be honest, in the past I hated ChipAmps. Until I discover the LM3886.

After lot of hours spent in researching, re-designing, testing and assembling, here is my final product. It is my version of famous Gainclone, with some improvements.

It is running with a pair of 2 way 4ohms speaker, 56WRMS for each channel.

Nice sound, punch bass, clear midrange, lowest distortion. I am happy with it.

I hope you like it and please give your comments about it.

Best Regards,
Julio Cesar.
Attached Images
File Type: jpg 100_1878a.jpg (98.4 KB, 1586 views)
  Reply With Quote
Old 23rd December 2008, 11:38 PM   #2
binary is offline binary  Brazil
diyAudio Member
 
binary's Avatar
 
Join Date: Mar 2005
Location: SP - Brazil
Another view:
Attached Images
File Type: jpg 100_1891a.jpg (95.4 KB, 1463 views)
  Reply With Quote
Old 23rd December 2008, 11:41 PM   #3
binary is offline binary  Brazil
diyAudio Member
 
binary's Avatar
 
Join Date: Mar 2005
Location: SP - Brazil
VU Detail:
Attached Images
File Type: jpg 100_1884a.jpg (95.5 KB, 1296 views)
  Reply With Quote
Old 23rd December 2008, 11:47 PM   #4
binary is offline binary  Brazil
diyAudio Member
 
binary's Avatar
 
Join Date: Mar 2005
Location: SP - Brazil
Internal view 1:
Attached Images
File Type: jpg 100_1880a.jpg (98.8 KB, 1559 views)
  Reply With Quote
Old 23rd December 2008, 11:49 PM   #5
binary is offline binary  Brazil
diyAudio Member
 
binary's Avatar
 
Join Date: Mar 2005
Location: SP - Brazil
Internal view 2:
Attached Images
File Type: jpg 100_1868a.jpg (99.4 KB, 1341 views)
  Reply With Quote
Old 23rd December 2008, 11:52 PM   #6
binary is offline binary  Brazil
diyAudio Member
 
binary's Avatar
 
Join Date: Mar 2005
Location: SP - Brazil
PCB Layout:
Attached Images
File Type: jpg 100_1903a.jpg (88.2 KB, 1362 views)
  Reply With Quote
Old 24th December 2008, 12:57 AM   #7
diyAudio Member
 
Join Date: Mar 2008
Location: Kansas!
Very nice case! Very professional! I see you have more then the standard 1 volume knob, did you implement some sort of tone, or mild EQ? Would you be willing to share your schematics, and results of experimentation?
Thanks,
Steve
  Reply With Quote
Old 24th December 2008, 02:27 PM   #8
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
Hi,
how do the internal heatsinks cool?
I can see one vent grille in the top, but at the end away from the sinks. Are there any vents in the bottom of the case, particularly directly below each of the sinks?
__________________
regards Andrew T.
  Reply With Quote
Old 24th December 2008, 02:36 PM   #9
vglaso is offline vglaso  United States
diyAudio Member
 
Join Date: Apr 2008
Default 3886 amp

you've used /included a power level ...from a tape player?.. perhaps I'm wrong. I also use parts from other pieces. Am curious how you did that. Nice amp- looks like a single power supply with two boards/channels. The three control knobs have me curious... My own efforts are so messy .. even with a picture no-one would be able to tell what is going where. thanks for putting it out here.
  Reply With Quote
Old 24th December 2008, 03:52 PM   #10
binary is offline binary  Brazil
diyAudio Member
 
binary's Avatar
 
Join Date: Mar 2005
Location: SP - Brazil
More pics:
From the begining, the first test with external power supply:
Attached Images
File Type: jpg 100_1541a.jpg (89.9 KB, 1109 views)
  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
Finished my first Gainclone. Need some help. samsagaz Chip Amps 1 1st May 2008 05:04 AM
Nice power supply for gainclone maybe? Voltaic Everything Else 0 7th July 2006 12:07 AM
Another finished Gainclone Treefingers Chip Amps 6 21st September 2005 09:32 PM
Nice polish Gainclone peranders Chip Amps 13 19th February 2005 08:24 PM
Finished my GainClone dezzz Chip Amps 4 23rd October 2004 04:15 PM


New To Site? Need Help?

All times are GMT. The time now is 02:36 AM.


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