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

Equipment & Tools From test equipment to hand tools

Autoranger for soundcards
Autoranger for soundcards
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 November 2017, 10:10 AM   #381
OlegSh is online now OlegSh
diyAudio Member
 
Join Date: Dec 2010
Location: Germany
Autoranger for soundcards
Yesterday evening I have finally assembled my autoranger (except C6). Looking at the calibration instruction I realized that I have no wideband AC RMS voltmeter at hands (just a regular DMM) but I have a Rigol DS1054Z o-scope. I guess o-scope should be accurate enough for measuring AC levels or I really need a dedicated AC voltmeter for calibration?

Regards,
Oleg
  Reply With Quote
Old 1st November 2017, 10:17 AM   #382
jcga is offline jcga  France
diyAudio Member
 
Join Date: Jun 2004
Location: Paris
Jan,

Quote:
Originally Posted by jan.didden View Post
Oleg, yes indeed. You were also right about C1, C8 being part of the atten board, not the control board.
All corrected, thanks for the heads-up.
Jan

minor but you should correct the quantity also... 1 for C10, 1 for C6
Best
JC
  Reply With Quote
Old 1st November 2017, 01:16 PM   #383
jan.didden is offline jan.didden  Europe
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: The great city of Turnhout, BE
Arrghh...
Done
__________________
Music is dither to the brain; lets me think below the usual chaos - me
Get more Linear Audio for less! Check out my Autoranger and SilentSwitcher
  Reply With Quote
Old 6th November 2017, 07:47 AM   #384
ergo is offline ergo  Estonia
diyAudio Member
 
Join Date: Mar 2001
Location: Tallinn, Estonia
I've finished my build as well. Working nice!

I added some pictures too with power supply wiring done with red(+)/black(gnd)/blue(-), so perhaps of help for some who's yet to do the build. Also marked the C27 where pinout needs the use of outer holes olny and the latest change of C6->360pF
Attached Images
File Type: jpg AR_front.jpg (249.3 KB, 234 views)
File Type: jpg SS_view.jpg (320.3 KB, 231 views)
File Type: jpg AR_view.jpg (424.3 KB, 230 views)
File Type: jpg AR_top_view.jpg (635.6 KB, 226 views)
  Reply With Quote
Old 6th November 2017, 07:51 AM   #385
jan.didden is offline jan.didden  Europe
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: The great city of Turnhout, BE
Looking good Ergo! Thanks for the pics.

Jan
__________________
Music is dither to the brain; lets me think below the usual chaos - me
Get more Linear Audio for less! Check out my Autoranger and SilentSwitcher
  Reply With Quote
Old 6th November 2017, 02:42 PM   #386
anatech is offline anatech  Canada
diyAudio Moderator
 
anatech's Avatar
 
Join Date: Jun 2004
Location: Georgetown, On
Autoranger for soundcards
That does look pretty sharp!

-Chris
__________________
"Just because you can, doesn't mean you should" my Wife
  Reply With Quote
Old 8th November 2017, 10:25 PM   #387
BlacK_Chicken is offline BlacK_Chicken  Germany
diyAudio Member
 
Join Date: Nov 2005
Dear Jan,

the PICs arrived a week ago. Thank you very much for the generous support.

My AR is currently disassembled because I have troubles sourcing the NP0 capacitors. Now C6 has changed and I have nothing comparable in stock. At work: also nothing.

Can I test your software without C10/C6 or with 510pF?

Best regards
  Reply With Quote
Old 9th November 2017, 06:33 AM   #388
ergo is offline ergo  Estonia
diyAudio Member
 
Join Date: Mar 2001
Location: Tallinn, Estonia
I used 2x180pF in parallel for C6. That was easier to find.
As far as I've understood all these caps are frequency response related. So you should be able to get the device operational also with slight differing values.

As a note - at first power on you probably will not see anything on LCD... but as documentation says this is due to contrast being way off and needing adjustment. I had missed that at first in the manual and of course got a bit worried that something is wrong...
__________________
Ergo
  Reply With Quote
Old 9th November 2017, 09:02 AM   #389
FdW is offline FdW  Netherlands
diyAudio Member
 
FdW's Avatar
 
Join Date: Feb 2009
Location: Both feet on the ground (near Gouda)
Autoranger for soundcards
I used 330p + 33p, worked fine
  Reply With Quote
Old 12th November 2017, 02:44 PM   #390
BlacK_Chicken is offline BlacK_Chicken  Germany
diyAudio Member
 
Join Date: Nov 2005
I finally found a solution for C6 made out of six 0805 in series and parallel connection Time to recal. and test!
  Reply With Quote

Reply


Autoranger for soundcardsHide 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
Using 2 soundcards merlinx76 PC Based 1 1st April 2011 08:46 PM
Best audiophile Soundcards ostripper Digital Source 3 18th August 2008 03:51 PM
soundcards exurbia Digital Source 10 13th August 2008 06:06 AM
Soundcards JoeBob Digital Source 21 22nd January 2002 08:16 AM


New To Site? Need Help?

All times are GMT. The time now is 06:27 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki