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

Pass Labs This forum is dedicated to Pass Labs discussion.

Burning Amp BA-3
Burning Amp BA-3
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 5th February 2018, 05:22 PM   #2301
Rubber Soul is offline Rubber Soul
diyAudio Member
 
Join Date: Nov 2014
Thanks for the replies. I measure the output offset from speaker outputs. I am adjusting P1 on the bias board. I have the v2.8 version. It drifts fast from 0 to -1000 mA when I turn it on. Still -1000 after warming up. The heatsink doesnt get warm. I Will try to pose a photo.
  Reply With Quote
Old 5th February 2018, 05:31 PM   #2302
Rubber Soul is offline Rubber Soul
diyAudio Member
 
Join Date: Nov 2014
http://www.bilddump.se/bilder/20180205193041-95.199.20.45.JPG[/IMG]
  Reply With Quote
Old 5th February 2018, 05:34 PM   #2303
Rubber Soul is offline Rubber Soul
diyAudio Member
 
Join Date: Nov 2014
Click the image to open in full size.
  Reply With Quote
Old 5th February 2018, 05:53 PM   #2304
Zen Mod is offline Zen Mod  Serbia
Official Court Jester
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
Burning Amp BA-3
Fire in the Barn?

I wouldn't use hardware as that even for lightbulbs
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa...© by Mighty ZM
  Reply With Quote
Old 6th February 2018, 07:20 AM   #2305
AndrewT is offline AndrewT  Scotland
R.I.P.
 
Join Date: Jul 2004
Location: Scottish Borders
Quote:
Originally Posted by Rubber Soul View Post
Thanks for the replies. I measure the output offset from speaker outputs. I am adjusting P1 on the bias board. I have the v2.8 version. It drifts fast from 0 to -1000 mA when I turn it on. Still -1000 after warming up. The heatsink doesnt get warm. I Will try to pose a photo.
How are you measuring 1000mA?
When measuring output offset the input should be shorted and the output should be open. Open = zero current, NOT 1000mA !
__________________
regards Andrew T.
  Reply With Quote
Old 6th February 2018, 07:45 AM   #2306
Rubber Soul is offline Rubber Soul
diyAudio Member
 
Join Date: Nov 2014
Quote:
Originally Posted by AndrewT View Post
How are you measuring 1000mA?
When measuring output offset the input should be shorted and the output should be open. Open = zero current, NOT 1000mA !
Sorry, not mA, mV!
  Reply With Quote
Old 6th February 2018, 07:46 AM   #2307
Rubber Soul is offline Rubber Soul
diyAudio Member
 
Join Date: Nov 2014
Quote:
Originally Posted by Zen Mod View Post
Fire in the Barn?

I wouldn't use hardware as that even for lightbulbs
It is a burning amplifier . The hardware are reliable, problem is rather no heat on heatsink.
  Reply With Quote
Old 5th March 2018, 02:43 PM   #2308
Abx74 is offline Abx74  France
diyAudio Member
 
Join Date: Dec 2011
Location: Bourg-en-Bresse
Hi,
I have a little problem here. I accidently turn P3 on one side during my (re)biasing operation. Is there a solution to mesure it without desoldering it ?
Thanks
Damien
  Reply With Quote
Old 5th March 2018, 05:01 PM   #2309
6L6 is offline 6L6  United States
diyAudio Moderator
 
6L6's Avatar
 
Join Date: Oct 2010
Location: Denver, Colorado
Burning Amp BA-3
Damien, how far did you turn it?
  Reply With Quote
Old 5th March 2018, 05:57 PM   #2310
Abx74 is offline Abx74  France
diyAudio Member
 
Join Date: Dec 2011
Location: Bourg-en-Bresse
2 or 3 turns I'm not sure
I was just checked if everythings was ok after rebuilding my amp, want to decrease my offset a little ...
  Reply With Quote

Reply


Burning Amp BA-3Hide 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
Burning Amplifier BA-1 Variac Pass Labs 356 17th January 2017 11:54 PM
Burning Amplifier BA-3 Nelson Pass diyAudio.com Articles 39 14th October 2016 11:36 AM
Burning Amplifier BA-1 Nelson Pass diyAudio.com Articles 3 24th October 2011 02:53 AM
WTB: Burning Amp BA-1 or BA-2 jdubs Swap Meet 0 23rd March 2011 03:16 AM
FS: two burning amps (one each BA-1 and BA-2) without drivers Eric Weitzman Swap Meet 15 17th February 2010 02:35 AM


New To Site? Need Help?

All times are GMT. The time now is 01:40 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki