Building a symmetrical psu B1 buffer - Page 231 - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs

Pass Labs This forum is dedicated to Pass Labs discussion.

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 27th December 2011, 10:05 AM   #2301
diyAudio Member
 
Benedetto's Avatar
 
Join Date: Nov 2007
Location: Knifetown-Germoney
Hi Andrew,
what do you mean "errors" ?
Is there anything wrong with the Mezmerize boards ?
I've got one nearly stuffed....?(
__________________
preregulatorpeterE-MAIL
  Reply With Quote
Old 27th December 2011, 10:07 AM   #2302
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
Some of the designers choices were discussed early in the DCB1 Thread.
The designer was not interested in feedback.
Those choices ended up in the traces.
I told you all, but you refused to listen.
__________________
regards Andrew T.
  Reply With Quote
Old 27th December 2011, 10:15 AM   #2303
diyAudio Member
 
Benedetto's Avatar
 
Join Date: Nov 2007
Location: Knifetown-Germoney
Sorry Andrew,
just because i'd bought it long time ago i thought
everything is ok.
My fault, did'nt read the thread properly.
Click the image to open in full size.
__________________
preregulatorpeterE-MAIL
  Reply With Quote
Old 27th December 2011, 10:45 AM   #2304
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
The boards are fine, this is a project repeated successfully in the hundreds already. Don't worry.

P.S.
Andrew, if you will repeat claims that the boards are in error, I will have to report your posts.
  Reply With Quote
Old 27th December 2011, 10:50 AM   #2305
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
Report my warnings.
I have the evidence to show the "errors". These can be found in the Thread.
I also have the evidence to show how to correct many of the errors.
__________________
regards Andrew T.
  Reply With Quote
Old 27th December 2011, 11:01 AM   #2306
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
The boards are following the design correctly. There are no discrepancies or faults in this regard. Ideas about what you may like to do differently are not accountable as fixing errors in the boards. This is a well seasoned and tried out project with tons of ''all well'' feedback. If you don't like it, post your own, make a thread. Enough is enough.
  Reply With Quote
Old 27th December 2011, 12:32 PM   #2307
diyAudio Member
 
regiregi22's Avatar
 
Join Date: May 2009
Location: Madrid (Spain)
Quote:
Originally Posted by AndrewT View Post
In the meantime I am developing Mezmerize into a multi-input pre-amp. There are many traces that need to be re-routed to remove errors in the standard PCB. I think I am almost there.
Any chance to show us your progress?

Regards,
__________________
diyAudio, doing it as big as you can, JUST BECAUSE WE CAN!
  Reply With Quote
Old 27th December 2011, 01:30 PM   #2308
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Any modification to the boards of any system that is referred as ''DCB1'', ''Mezmerize'', ''Hypnotize'', carries the name ''Salas'', or makes use of shunt regulators same as those incorporated to the above listed, is unofficial, not endorsed, not recommended, and not allowed to use those titles and PSUs. Any new idea, modification, spin off, or PCB resembling those, should be presented and discussed in another thread and be an entirely different project not carrying any reference to my name.
  Reply With Quote
Old 27th December 2011, 01:44 PM   #2309
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
Salas, does the dcb1 stand to benefit sonically from a constant impedance volume control source over the typical pot which of course changes impedance according to attenuation.
  Reply With Quote
Old 27th December 2011, 01:50 PM   #2310
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
If you had the opportunity to use a volume control source with steady output impedance in the recommended 10-20kOhm range, the bandwidth would be steady too. That is due to keeping a steady relation with the Jfet input capacitance. If that could be a subjective improvement I am not in a position to tell since I haven't used anything like that.
  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
New-building of my B1 buffer Babowana Pass Labs 328 20th February 2010 01:14 AM


New To Site? Need Help?

All times are GMT. The time now is 04:02 AM.


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