Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Chip Amps Amplifiers based on integrated circuits

My_Ref Fremen Edition - Build thread and tutorial
My_Ref Fremen Edition - Build thread and tutorial
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 12th October 2018, 08:57 PM   #3991
ClaveFremen is offline ClaveFremen  Italy
Reality first!
diyAudio Member
 
ClaveFremen's Avatar
 
Join Date: May 2005
Location: Milan, Italy
My_Ref Fremen Edition - Build thread and tutorial
With input shorted do you hear the same sound?
__________________
Dario
ClaveFremen "Bailando Salsa en el Sietch" - For My_Ref FE 12th GB extra boards PM me.
  Reply With Quote
Old 14th October 2018, 04:17 AM   #3992
madisonears is offline madisonears  United States
diyAudio Member
 
Join Date: Sep 2007
Where did you get your LM3886? I have another small amp that uses 3886, and when it failed (I don't know why, after quite a few years of service and nothing done to the amp or connections), it made some strange noises. Don't know what you mean by squeal, but that might be it.

Did you have any difficulty soldering the 3886, or did you stress any of the chip leads? Do any amp parts get hot? Assuming you have 2 monoblocks, does the other amp work?

Peace,
Tom E
  Reply With Quote
Old 14th October 2018, 04:32 PM   #3993
lehmanhill is offline lehmanhill  United States
diyAudio Member
 
lehmanhill's Avatar
 
Join Date: Jan 2008
Location: Chelsea, Michigan
Start with Dario's suggestion. Short the inputs and measure both DC and AC voltage.

Another thing to try. Ground the heatsink. George has found oscillation on some of his more adventurous builds and found that grounding the heatsink helps. Hopefully I told the correctly.

Jac
  Reply With Quote

Reply


My_Ref Fremen Edition - Build thread and tutorialHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
My_Ref Fremen Edition - Beta build/Fine tuning ClaveFremen Chip Amps 1526 8th October 2017 03:03 PM
My_Ref Fremen Edition RC - Build thread ClaveFremen Chip Amps 1273 4th July 2016 06:21 PM
My_Ref Fremen Edition - need help on PCB evaluation ClaveFremen Chip Amps 450 23rd October 2013 03:38 PM
My_Ref Fremen Edition Interest/Group Buy ClaveFremen Group Buys 348 25th June 2013 09:58 PM
Last My_Ref Fremen Edition RC boards for sale ClaveFremen Swap Meet 3 4th December 2012 01:04 PM


New To Site? Need Help?

All times are GMT. The time now is 08:45 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki