Burning Amp BA-3b (Balanced) - Page 2 - 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 9th October 2011, 06:01 AM   #11
6L6 is offline 6L6  United States
diyAudio Member
 
6L6's Avatar
 
Join Date: Oct 2010
Location: Denver, Colorado
buzzforb - I know it was a joke...

The real problem lay in the fact that at this point I truly do want to build a number of the various topologies to see what they all sound like. That's why I'm building an Aleph... it should be a good contrast to my F5.

It would be a fantastic day to get a small bunch of people together in a good listening room with a bunch of different amps and 1 or 2 good speakers and mix n match and see what everybody thinks of the various topologies.
  Reply With Quote
Old 9th October 2011, 07:19 AM   #12
generg is offline generg  Germany
dog dead, me alive
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
Quote:
Originally Posted by juma View Post
You're killing me !

It's all in the F5 article - common Source, common Drain, common Gate topologies, explanations and drawings...

Just remember that every FET with 2SJ prefix is a P-channel and every 2SK is a N-channel device.

Few simple things more:
- every N-ch device has its Drain more positive than the Source in order to work
- N-ch depletion mode device (f.e. JFET, like 2sk170) will not conduct the current only if its Source is far more positive than its Gate
- N-ch enhanced mode device (f.e. HEXFET, like IRF610) will conduct the current only if its Gate is more positive (few volts) than its Source

-With P-ch devices everything is the opposite
I know...!
__________________
and the First Wtt is......a really First Class PSS Idea
  Reply With Quote
Old 9th October 2011, 09:46 AM   #13
diyAudio Member
 
Bksabath's Avatar
 
Join Date: Dec 2007
Quote:
Originally Posted by 6L6 View Post
buzzforb - I know it was a joke...
It would be a fantastic day to get a small bunch of people together in a good listening room with a bunch of different amps and 1 or 2 good speakers and mix n match and see what everybody thinks of the various topologies.
I could try and ask at the Telford Wharehouse

Is a realy nice Pub Hazel O connor there soon.
Food is preaty good as well
and they have Budwar (the original one) on tap.

Most days music room is not in use..

Ops. it is in Chester UK
  Reply With Quote
Old 9th October 2011, 10:17 AM   #14
diyAudio Moderator
 
pinkmouse's Avatar
 
Join Date: Apr 2002
Location: Chatham, England
Strange symmetry. The last get together was in Chesterfield.
__________________
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  Reply With Quote
Old 9th October 2011, 10:34 AM   #15
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
Quote:
Originally Posted by rsdio View Post
......

May I put on my image file format hat for a moment ....
may I put my Dunce Hat for a moment and say that any sort of file is good enough , when using it for good schematic ?



there are my two conversions , much neater in format , but I can't find them cleverer at all , than original one ........

Attached Images
File Type: gif burning-amp-ba-3-202-bba-3-.gif (29.7 KB, 1882 views)
File Type: png burning-amp-ba-3-202-bba-3-.png (14.5 KB, 1849 views)
__________________
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 9th October 2011, 11:19 AM   #16
generg is offline generg  Germany
dog dead, me alive
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
I would be interested in an explanation why it is useful that Papa connected the R5 in BBA-3 not to ground but together...?
__________________
and the First Wtt is......a really First Class PSS Idea
  Reply With Quote
Old 9th October 2011, 11:21 AM   #17
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
from same reason you can find that longer tail on LTP is increasing symmetry between halves ....
__________________
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 9th October 2011, 11:22 AM   #18
generg is offline generg  Germany
dog dead, me alive
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
thanks Zen Mod....

which parts are the longer tail....?
__________________
and the First Wtt is......a really First Class PSS Idea
  Reply With Quote
Old 9th October 2011, 11:25 AM   #19
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
ZM non comprende .....

you asking what's longer tail in LTP , or what's here analog to tail in LTP ?
__________________
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 9th October 2011, 11:30 AM   #20
generg is offline generg  Germany
dog dead, me alive
diyAudio Member
 
generg's Avatar
 
Join Date: Jul 2009
Location: Near Frankfurt
Quote:
or what's here analog to tail in LTP ?
this would be fine....
__________________
and the First Wtt is......a really First Class PSS Idea
  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
Burning Amp BA-3 Backbones Pass Labs 1738 7th December 2014 07:33 PM
Burning Amplifier BA-2 Variac Pass Labs 1125 1st July 2014 02:39 PM
Burning Amplifier BA-2 Nelson Pass diyAudio.com Articles 5 14th September 2011 07:11 PM
WTB: Burning Amp BA-1 or BA-2 jdubs Swap Meet 0 23rd March 2011 04:16 AM
FS: two burning amps (one each BA-1 and BA-2) without drivers Eric Weitzman Swap Meet 15 17th February 2010 03:35 AM


New To Site? Need Help?

All times are GMT. The time now is 05:38 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