Amp Camp Amp - ACA - Page 4 - 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 2nd July 2012, 11:36 AM   #31
juma is offline juma  Germany
diyAudio Member
 
juma's Avatar
 
Join Date: Nov 2005
Location: Berlin
Quote:
Originally Posted by Ipanema View Post
... I'm using BC550B which only gives 0.58V instead of 0.65V. How can I compensate for the biasing difference? Thanks.
Nothing really to compensate for - the only consequence is about 10% lower bias. If you want higher bias try another small BJT or adjust values of R1-R4 (lower value resistors will give higher bias).
  Reply With Quote
Old 2nd July 2012, 01:00 PM   #32
Ipanema is offline Ipanema  Malaysia
diyAudio Member
 
Ipanema's Avatar
 
Join Date: Jun 2004
Location: KL
What are the functions of R1~R4 besides setting the bias current? Thanks.
  Reply With Quote
Old 2nd July 2012, 07:24 PM   #33
juma is offline juma  Germany
diyAudio Member
 
juma's Avatar
 
Join Date: Nov 2005
Location: Berlin
Quote:
Originally Posted by Ipanema View Post
What are the functions of R1~R4 besides setting the bias current? Thanks.
See SRPP+ here:
SRPP+ All-in-One & Mu Followers
or Google for "mu follower"

Last edited by juma; 2nd July 2012 at 07:28 PM.
  Reply With Quote
Old 2nd July 2012, 08:43 PM   #34
generg is offline generg  Germany
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
juma can you fake a SIT out of it....?

question is half joke, half cool idea.....
__________________
and the First Wtt is......a really First Class PSS Idea
  Reply With Quote
Old 2nd July 2012, 08:50 PM   #35
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
it's already faked , I think by revintage
__________________
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 2nd July 2012, 09:06 PM   #36
generg is offline generg  Germany
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
Quote:
Originally Posted by Zen Mod View Post
it's already faked , I think by revintage
Yes Zen Mod, will it drive F4?
and this button is a fake too! that lasts on.... I want the red one back..... vintage..... Not these alcoholic blue one.....
__________________
and the First Wtt is......a really First Class PSS Idea
  Reply With Quote
Old 2nd July 2012, 09:16 PM   #37
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
Of course not, Sit is depletion device. Its right there in the article....lazy!
__________________
...Shape the sound , Man!
  Reply With Quote
Old 2nd July 2012, 09:24 PM   #38
generg is offline generg  Germany
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
Juma is gifted......!
__________________
and the First Wtt is......a really First Class PSS Idea
  Reply With Quote
Old 2nd July 2012, 09:28 PM   #39
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
but fake SIT made of enhanced mode device is still enhanced mode device



not that I'm forgetting amp. factor issue then , if we are still talking about Camp Amp
__________________
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 2nd July 2012, 09:33 PM   #40
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
I agree on all counts.
__________________
...Shape the sound , Man!
  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
Amp Camp Amp #1 Nelson Pass diyAudio.com Articles 33 15th May 2014 04:52 PM
Amp Camp! Jason Site Announcements 2 30th June 2012 02:57 PM
Best D camp config for Tweeter amp Zero One Class D 0 24th February 2010 04:57 AM
better the Pass camp? rick57 Tubes / Valves 6 26th March 2005 06:04 AM


New To Site? Need Help?

All times are GMT. The time now is 07:43 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