DAC-ASH (dac-end 2 up date) - Page 30 - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Quanghao Audio Design

Quanghao Audio Design Quanghao Audio Design is a producer of DIY Audiophile Kits and PCB boards, selected from many listening tests!

Reply
 
Thread Tools Search this Thread
Old 9th December 2010, 10:25 PM   #291
phrarod is offline phrarod  United States
diyAudio Member
 
Join Date: Aug 2005
Sucks as I planned on doing just that and took a break to do it and --- with everything laid out carefully and cutting out the old SK's because I was worried about damaging the solder pads -- I put them in the wrong rail!! Arrrgh. I will try and carefully remove those and swap them for the others I should have replaced. Thanks. I really want to find this out. I was so proud the board looks perfect then...
  Reply With Quote
Old 9th December 2010, 11:14 PM   #292
phrarod is offline phrarod  United States
diyAudio Member
 
Join Date: Aug 2005
I replaced Q3 and the voltage came right uo. So if I didn't waste those two spares I might have it working now.

Since I have order more I see there's comments about the BL which draw more current. Is there any advantage to these? I wouldn't mix and match but if I'm doing all this anyway I wondered if there's any serious sonic benefit to switching them all out?
  Reply With Quote
Old 10th December 2010, 02:01 AM   #293
diyAudio Member
 
Join Date: Sep 2009
Location: Vietnam
Blog Entries: 2
Send a message via Yahoo to quanghao Send a message via Skype™ to quanghao
Hi phrarod!

You make follow the basic Circuit, not change any thing!
The DAC-ASH board , All it is easy to make it!
__________________
Group buy DAC-END R (ES9018) full assembled board
update 06/14/2013 :http://www.audiodesignguide.com/DAC32/index2.html
  Reply With Quote
Old 10th December 2010, 02:07 AM   #294
phrarod is offline phrarod  United States
diyAudio Member
 
Join Date: Aug 2005
So continue to use the GR version of the 2SK170?
  Reply With Quote
Old 10th December 2010, 02:16 AM   #295
diyAudio Member
 
ben-jam-in's Avatar
 
Join Date: Dec 2009
Location: Vancouver
Quote:
Originally Posted by phrarod View Post
So continue to use the GR version of the 2SK170?
Why don't you try swapping out some of the 2sk170's in the one rail that you have left to sort out. Even try the 2sk170's that were elsewhere in the board, before you order more.
  Reply With Quote
Old 10th December 2010, 06:43 AM   #296
phrarod is offline phrarod  United States
diyAudio Member
 
Join Date: Aug 2005
I will but I still need to order more because I am down one. Is there any benefit of the DL over the BR?
  Reply With Quote
Old 10th December 2010, 12:58 PM   #297
la1209 is offline la1209  Hong Kong
diyAudio Member
 
Join Date: May 2006
I've a R-core transformer stated 50VA, 0-250V(50mA) X 2; 0-7.5V(1A) X 2, is that good matched with the SSHV?
  Reply With Quote
Old 11th December 2010, 09:27 AM   #298
la1209 is offline la1209  Hong Kong
diyAudio Member
 
Join Date: May 2006
I solve the question already, thanks!
  Reply With Quote
Old 11th December 2010, 09:31 AM   #299
la1209 is offline la1209  Hong Kong
diyAudio Member
 
Join Date: May 2006
BL grade 2sk170 had a higher IDSS than the GR grade, the highest one should be 2sk170v
  Reply With Quote
Old 11th December 2010, 09:11 PM   #300
diyAudio Member
 
Join Date: Sep 2009
Location: Vietnam
Blog Entries: 2
Send a message via Yahoo to quanghao Send a message via Skype™ to quanghao
Quote:
Originally Posted by la1209 View Post
I've a R-core transformer stated 50VA, 0-250V(50mA) X 2; 0-7.5V(1A) X 2, is that good matched with the SSHV?
If you ise for tube 6h6 or 6h30, it is no good!
For 6dj8, it is ok!
because : 6h30 and 6h6 need 800mA one filament tube, and 20mA 1/2 tube!
__________________
Group buy DAC-END R (ES9018) full assembled board
update 06/14/2013 :http://www.audiodesignguide.com/DAC32/index2.html
  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
diyclub.biz DAC-38, DAC-60, DAC-68. Anybody heard? TonyDasilva Digital Line Level 21 13th April 2009 05:10 PM
Jambo DAC - DIY USB/Optical/Coaxial DAC kit now available! Jambo Digital Source 8 20th August 2008 09:41 AM
Repairing Black Ash veneer BarakaBloke Multi-Way 22 2nd March 2008 05:39 PM
DPA little bit dac modding (7350 dac, ym3623b receiver) ash_dac Digital Source 16 5th December 2007 07:09 PM
FS: Unfinished ash baffles from my OB project - $25 - Seattle, WA area owdi Swap Meet 5 26th July 2007 08:54 PM


New To Site? Need Help?

All times are GMT. The time now is 10:41 PM.


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