Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

Aleph J illustrated build guide
Aleph J illustrated build guide
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 Yesterday, 07:18 AM   #4551
Extreme_Boky is offline Extreme_Boky
diyAudio Member
 
Join Date: Dec 2003
...also, I am not familiar with that A30 board; how's Q3 biased on that board?
  Reply With Quote
Old Yesterday, 07:38 AM   #4552
twitchie is offline twitchie  Canada
Magic Smoke Liberator
diyAudio Member
 
Join Date: Jul 2004
Location: Toronto
Aleph J illustrated build guide
Thanks for the information Extreme_Boky, it is helpful.

The board is Peter Daniel's A30 board:
The Aleph30 PCB layout

This is designed for IRF610 and 9610 front end and there are a few small trace differences because the A30 schematic is different. The conversion mapping I figured out and entered into an excel sheet

AJ on A30 board.pdf
  Reply With Quote
Old Yesterday, 07:41 AM   #4553
twitchie is offline twitchie  Canada
Magic Smoke Liberator
diyAudio Member
 
Join Date: Jul 2004
Location: Toronto
Aleph J illustrated build guide
I realize the pinout is different from the small mosfets and the jfets and did a creative 'twist' to get the legs in the right spots but managed it without twisting legs around each other. Take the source leg and push it across to the opposite source (sources are tied together so it is ok), offset the G and D by 1 spot and do the same for the other side. It works and no ugly mangled jfets.
  Reply With Quote
Old Yesterday, 10:28 AM   #4554
Dennis Hui is offline Dennis Hui  Canada
Hoopy Frood
diyAudio Member
 
Join Date: Aug 2002
Location: Toronto, Canada
Aleph J illustrated build guide
Neat project twitchie. Hope to see you have it up running soon.

Cheers,
Dennis
__________________
We are fearless amplifier builders. A little heat doesn't scare us at all.
- NP 2002
  Reply With Quote
Old Today, 09:55 AM   #4555
toto34 is offline toto34
diyAudio Member
 
Join Date: Dec 2018
Location: France
Aleph J illustrated build guide
Good morning to you all.
Could you give me the ANTEK reference for the 2X 18V 400 VA transformer because the one I use does 300 VA and it heats up a bit in my opinion.
Thank you in advance.
  Reply With Quote
Old Today, 11:02 AM   #4556
Extreme_Boky is offline Extreme_Boky
diyAudio Member
 
Join Date: Dec 2003
Have you checked ANTEK website for the shipping costs to France? When I tried to ship ANTEK to Australia, I was horrified... shipping costs were insane.

Why not use Toroidy; they are based in Poland, fully potted and shielded. You can also get a very nice mounting plate that will make assembly task a breeze.
  Reply With Quote
Old Today, 11:04 AM   #4557
Zen Mod is offline Zen Mod  Serbia
Official Court Jester
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
Aleph J illustrated build guide
after few hours of work , if you can put your fingers on Donut (be careful not to touch everything with exposed mains voltage !) and keep them for good , Donut is good


bit is normal ....... plenty isn't

say that 50C (closed case) is OK in my book ........ even if Donuts I'm using are much colder (1 of 250VA per channel)
__________________
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 Today, 12:04 PM   #4558
Blk Dynamite is offline Blk Dynamite  United States
diyAudio Member
 
Join Date: Dec 2016
Quote:
Originally Posted by Extreme_Boky View Post
Have you checked ANTEK website for the shipping costs to France? When I tried to ship ANTEK to Australia, I was horrified... shipping costs were insane.

Why not use Toroidy; they are based in Poland, fully potted and shielded. You can also get a very nice mounting plate that will make assembly task a breeze.
Iím in the states and order from toroidy. I really like their transformers. Nothing with antek though; they make fine transformers too
  Reply With Quote
Old Today, 12:09 PM   #4559
ItsAllInMyHead is online now ItsAllInMyHead  United States
diyAudio Member
 
Join Date: Mar 2019
Location: The great state of Minnesoooota.
However, it seems no one has actually answered your original question... Great advice and information provided all around, but if you would still like an Antek...

AS-4218 - 400VA 18V Transformer - AnTek Products Corp
__________________
If you want a friend, feed any animal - Perry Farrell
  Reply With Quote

Reply


Aleph J illustrated build guideHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
An illustrated guide to building an F5 6L6 Pass Labs 1221 17th December 2019 03:22 PM
MyRefC build guide AndrewT Chip Amps 1119 29th July 2016 11:30 PM
An illustrated guide for Aleph 60 builders PKI Pass Labs 58 12th October 2013 08:13 PM
Aleph J Stuffing guide ? thor61 Pass Labs 2 4th September 2011 09:02 PM
My first step by step LM3886 illustrated build kgb_m3 Chip Amps 19 17th February 2010 05:46 PM


New To Site? Need Help?

All times are GMT. The time now is 12:21 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright ©1999-2020 diyAudio
Wiki