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

This is not just another gainclone
This is not just another gainclone
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 17th March 2003, 09:28 PM   #1291
planet10 is offline planet10  Canada
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
This is not just another gainclone
Quote:
Originally posted by Bricolo
666kHz oscillation
Number of the beast ... you must be having devil problems

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 17th March 2003, 09:29 PM   #1292
Fred Dieckmann is offline Fred Dieckmann  United States
diyAudio Retiree
 
Join Date: Oct 2002
Location: Spain or the pueblo of Los Angeles
Default no zoble, and I'd prefer doing without

Well......... Have fun with your oscillator then.
  Reply With Quote
Old 17th March 2003, 09:32 PM   #1293
Bricolo is offline Bricolo  France
diyAudio Member
 
Bricolo's Avatar
 
Join Date: Nov 2002
Location: Grenoble, FR
Default Re: no zoble, and I'd prefer doing without

Quote:
Originally posted by Fred Dieckmann
Well......... Have fun with your oscillator then.
grrrr....


why do you like zobels so much?
I prefer solving my oscillation problem, rather than damping it with a zobel, it's the better way to go, imho
  Reply With Quote
Old 17th March 2003, 09:33 PM   #1294
UrSv is offline UrSv  Sweden
diyAudio Member
 
UrSv's Avatar
 
Join Date: Jan 2002
Location: Sweden
Quote:
Originally posted by Bricolo



I hadn't

I thought I had, because my chips were hot and drawed 300ma at iddle, but the scope showed no oscillation



Now I have



I've tested something 2 minutes ago:
on a dummy load (10R resistance): no oscillation
on a speaker: 666kHz oscillation

when I disconnect the other's channel speaker: no more oscillation
I would probably prefer and amp without oscillations. I would also feel somewhat insecure if my amp would feel like oscillating every now and then and choose to make sure it did not. Does not seem unreasonable to me.
__________________
UrSv
Those who say it can't be done should not stop those who are doing it.
  Reply With Quote
Old 17th March 2003, 09:34 PM   #1295
Bricolo is offline Bricolo  France
diyAudio Member
 
Bricolo's Avatar
 
Join Date: Nov 2002
Location: Grenoble, FR
Quote:
Originally posted by planet10


Number of the beast ... you must be having devil problems

dave

I certainly waked the devil up, when my cap exploded
  Reply With Quote
Old 17th March 2003, 09:47 PM   #1296
Bricolo is offline Bricolo  France
diyAudio Member
 
Bricolo's Avatar
 
Join Date: Nov 2002
Location: Grenoble, FR
Quote:
Originally posted by UrSv


I would probably prefer and amp without oscillations. I would also feel somewhat insecure if my amp would feel like oscillating every now and then and choose to make sure it did not. Does not seem unreasonable to me.

I totally agree with you

but I don't know hot to make this oscillation stop
  Reply With Quote
Old 17th March 2003, 09:56 PM   #1297
Matttcattt is offline Matttcattt  England
diyAudio Member
 
Matttcattt's Avatar
 
Join Date: Feb 2003
Location: Bristol
cool nice one, cant wait to see the finished result.
__________________
If it aint broke, don't fix it. If it is broke, fix it.
If you can't fix it, take it apart and see how it "worked".
  Reply With Quote
Old 17th March 2003, 10:08 PM   #1298
Peter Daniel is offline Peter Daniel  Canada
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
This is not just another gainclone Send a message via AIM to Peter Daniel
Quote:
Originally posted by Bricolo



I totally agree with you

but I don't know hot to make this oscillation stop
Try to connect both channels output grounds with a piece of wire. It worked in my friend's setup.
__________________
To order kits contact me through forum mail.
  Reply With Quote
Old 17th March 2003, 10:10 PM   #1299
Cobra2 is offline Cobra2  Norway
DIY !
diyAudio Member
 
Cobra2's Avatar
 
Join Date: Apr 2002
Location: Stavanger, Norway
This is not just another gainclone This is not just another gainclone
Default ocillations...

Did you try other caps? (Another brand or another size...)
Check & re-route your wiring, both from PSU and in/output...

Arne K
  Reply With Quote
Old 17th March 2003, 10:31 PM   #1300
moamps is offline moamps  Croatia
diyAudio Member
 
Join Date: Oct 2002
Location: Croatia
Default Re: Re: no zoble, and I'd prefer doing without

Quote:
Originally posted by Bricolo

grrrr....

why do you like zobels so much?
I prefer solving my oscillation problem, rather than damping it with a zobel, it's the better way to go, imho

Hi,

Zobel network dont dump oscillation.
Zobel network prevent oscillation.
Amp with zobel have greather HF stability.

I dont see any bad comment on zobel.

Regards
  Reply With Quote

Reply


This is not just another gaincloneHide 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
Freebird + Gainclone = "integrated" gainclone? bikehorn Chip Amps 9 5th January 2006 03:07 PM
JLH v Gainclone? Jezz-the-Fezz Solid State 5 12th December 2005 12:08 PM
Big gainclone steven344 Chip Amps 10 23rd November 2005 07:58 PM


New To Site? Need Help?

All times are GMT. The time now is 05:16 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