Project Aleph 5 - 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 14th September 2012, 05:47 PM   #1
diyAudio Member
 
Join Date: Sep 2012
Default Project Aleph 5

Hello everybody,
i want to try to build an Aleph 5 but i have a lot of question for a parts !

I want to build this amp with the schematics and pcb of http://www.kk-pcb.com/

For powersupply what do you think about this parts ...

link for schematics : ALEPH 5 POWER SUPPLY

Transfo ... http://www.amplimo.nl/images/downloa...ange/78057.pdf

Capacitor 22000uf... PANASONIC - ECOS1VP223DA - CAPACITOR ALUM ELEC 22000UF 35V 20%, SNAP-IN
ECOS1VP223DA - PANASONIC - CAPACITOR ALUM ELEC 22000UF 35V | Newark

Capacitor 4.7uf... VISHAY ROEDERSTEIN - MKP1839547164 - CAPACITOR AXIAL, MKP, 4.7UF, 160V
MKP1839547164 - VISHAY ROEDERSTEIN - CAPACITOR AXIAL, MKP, 4.7UF, 160V | Newark

Bridge Rectifier... VISHAY GENERAL SEMICONDUCTOR GBPC3506-E4/51
GBPC3506-E4/51 - VISHAY GENERAL SEMICONDUCTOR - BRIDGE RECTIFIER, 1PH, 35A, 600V | Newark

Choke... WURTH ELEKTRONIK - 744824622 - CHOKE, COMMON MODE, 2.2MH 6A
744824622 - WURTH ELEKTRONIK - CHOKE, COMMON MODE, 2.2MH 6A | Newark

Thank you for your answer.
  Reply With Quote
Old 14th September 2012, 05:56 PM   #2
diyAudio Member
 
zeonrider's Avatar
 
Join Date: Mar 2004
Location: Belgrade RS
Better search for Brian GT PCB!

Regards zeoN_Rider
  Reply With Quote
Old 14th September 2012, 06:59 PM   #3
diyAudio Member
 
Join Date: Sep 2012
Ok thanks i check
  Reply With Quote
Old 14th September 2012, 07:00 PM   #4
diyAudio Member
 
Join Date: Feb 2009
use 50V caps. not 35V.
and 400VA transformer, insted of 300VA don't hurt
  Reply With Quote
Old 15th September 2012, 11:27 PM   #5
diyAudio Member
 
Join Date: Oct 2007
Location: melbourne
g,day

use the kkk pcb its a much better setup than the brian gt boards or peter d boards (i have all of the above )

more room for parts and the output devices space out way better on the sinks dissipating the heat better and allowing for higher bias /better sound ,they are very good boards

for the power supply go to aussie amplifiers and grab a pair of his psu3, they are already made and work perfect

i have been using the above with some nuvotem potted toroids for 5 years with no problems and if i had to build again i would do it the same


cheers
  Reply With Quote
Old 15th September 2012, 11:38 PM   #6
diyAudio Member
 
Join Date: Feb 2009
how on earth can kk-pcb's board spread the heat better then chipamp's boards, with seperat outputboards???? it's the other way around.
regarding PSU. chipamp also got some very nice PSU pcb's. at a very good price.
  Reply With Quote
Old 16th September 2012, 12:42 AM   #7
diyAudio Member
 
zeonrider's Avatar
 
Join Date: Mar 2004
Location: Belgrade RS
KK-pcb's are low quality. Brians at least gold plated.

These are my:


Click the image to open in full size.

Click the image to open in full size.

Regards zeoN_Rider
  Reply With Quote
Old 16th September 2012, 01:17 AM   #8
diyAudio Member
 
Join Date: Oct 2007
Location: melbourne
gold plated does not mean quality

layout thickness ect determins quality
as i said i have used all three pcbs mentioned ,have you ?

i owe nothing to any of the pcb makers mentioned i am just stating based on experiance which one is best

if you were building a head amp or one to be installed in a very small case then brians pcb or pd,s would be great
but for a full size amp the benefets stated in my first post can not be denied

i get the impression that seeing as you have the brian gt boards you will say they are the best regardless of if they are or not but i on the other hand have all three pcb,s and know which i would use

cheers
  Reply With Quote
Old 16th September 2012, 01:56 AM   #9
diyAudio Member
 
Join Date: Feb 2009
i will also say that brin's pcb is the best one. and i have those. i also have kk-pcb's boards.
  Reply With Quote
Old 16th September 2012, 02:00 AM   #10
diyAudio Member
 
Join Date: Feb 2009
Quote:
Originally Posted by slr 5000 View Post
are you joking or what audio san
the output spacing on the brian gt boards is too close and does not spread the heat over a normal sink properly (being outboard does not make a difference)
it concentrates all the heat in a small area
the spacing and size of the kkkpcb boards spread the heat over a much larger area

i thought this would be pretty simple to understand

i will say again i have all the above boards do you?
where do you get this from?? wonderland?
yes 3 and 3 fets are a little closer. but wht bout the distance between the 2 3 groups? forgot that or what?
  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
X Aleph Project Down Under macka Pass Labs 111 30th June 2008 01:55 PM
Aleph 2 project Thago Pass Labs 2 21st April 2007 07:44 AM
My aleph 2 project Jean Pass Labs 13 21st January 2004 07:14 AM
Looking for aleph project pictures. Andrej Introductions 6 1st March 2003 03:16 PM
Passlabs Aleph 5 project????? Chamberman Pass Labs 3 14th June 2001 08:53 PM


New To Site? Need Help?

All times are GMT. The time now is 01:26 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