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 4th April 2003, 08:35 PM   #1
diyAudio Member
 
Zappa's Avatar
 
Join Date: Jul 2002
Location: Québec
Angry Pearl input voltage difference

One question about the Pearl Phono project : what the hell is the difference of source voltages for the input FETs (Q8 - 11) means??? Are these voltages randomly choosed around a nominal value to simulate differences in Vgs or what??? Not very clearly explained in the original article...

Thanks!

p.s. aaaarg! I'm unable to post the .jpg of the Pearl input section I have on my HD!?!
  Reply With Quote
Old 6th April 2003, 08:15 PM   #2
diyAudio Member
 
Join Date: May 2002
Location: Boston, MA
I believe these are the voltages that were actually measured at the source. If you matched all the FETS, then these voltages should all be basically equal. I am not sure how closely they need to be matched.

Dave
  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
pearl, q4 no voltage noelectrix Pass Labs 9 26th January 2009 02:37 PM
Pearl: replace zener D1 with voltage divider? h_a Pass Labs 14 22nd February 2007 12:43 PM
yet another(different) pearl voltage problem detritus Pass Labs 3 1st April 2005 02:56 AM
Pearl voltage problem dzkh63 Pass Labs 6 4th March 2005 03:10 AM
Pearl input overload? Saurav Pass Labs 9 13th October 2003 05:09 AM


New To Site? Need Help?

All times are GMT. The time now is 05:47 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