Aleph J for Universal Mounting Spec - Page 23 - 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 19th February 2013, 06:47 PM   #221
henryve is offline henryve  South Africa
diyAudio Member
 
henryve's Avatar
 
Join Date: Jun 2008
Location: Strand
Thanks ZM.

They are quite pricey, but I only need 8, and hardly a dent in my wallet compared to the dent made by heatsinks and trafo.

Only the best for one of Pappa's gems.
  Reply With Quote
Old 19th February 2013, 07:07 PM   #222
6L6 is offline 6L6  United States
diyAudio Member
 
6L6's Avatar
 
Join Date: Oct 2010
Location: Denver, Colorado
You might as well use the single diode bridge with the Brian GT psu board - I used it in a F5 project, with the same diodes you linked, it worked well. Remember to get big heatsinks for the diodes, however.

I used (6) 33,000uf caps on that board, I really like it. I have another assembly just like it, which will likely be used on my Aleph J.
  Reply With Quote
Old 19th February 2013, 07:19 PM   #223
henryve is offline henryve  South Africa
diyAudio Member
 
henryve's Avatar
 
Join Date: Jun 2008
Location: Strand
Quote:
Originally Posted by 6L6 View Post
You might as well use the single diode bridge with the Brian GT psu board - I used it in a F5 project, with the same diodes you linked, it worked well. Remember to get big heatsinks for the diodes, however.

I used (6) 33,000uf caps on that board, I really like it. I have another assembly just like it, which will likely be used on my Aleph J.
Got my caps today from Digi-Key. 6 Panasonic THA 33000uF 35V caps. I originally ordered 12, but DK wanted to charge me 60$ shipping for my order even though it was over $200. The other parts were some 3W resistors and pots. I then changed my order to 6 caps to get free shipping. So now I must order the other 6 with some other order. What made me furious was that when the box was delivered this morning by FedEx, the parts (caps and other) was only like 5% the contents of the box, and the box must have weighed heavier than the contents. The other 6 caps could easily have fitted in there and the weight would not have changed by much.

Sometimes it just sucks living down here in never-neverland.
  Reply With Quote
Old 19th February 2013, 07:25 PM   #224
6L6 is offline 6L6  United States
diyAudio Member
 
6L6's Avatar
 
Join Date: Oct 2010
Location: Denver, Colorado
Huh. There is no logic sometimes with the shipping companies.

I had a single F5 project that had $100 total just in shipping. Asia to the United States is not very fun, I can't imagine how bad the south end of Africa is... nothing's close at all!
  Reply With Quote
Old 19th February 2013, 10:03 PM   #225
diyAudio Member
 
bnorrish's Avatar
 
Join Date: Oct 2012
Location: Boston
I like the $4.99 Mouser Economy shipping in US. Gas to the nearest electronic store is more for me. Usually if I place an order on Sunday, I have by Friday.

What I like about this Aleph J project is that I can swap in the amp board quickly with my F5. I would like to do the F5T someday, but the cost of 5U chassis is close to $500. That could be better spent else where in my system - speakers, DAC, cartridge, preamp - more vinyl. 6L6 - I hope you got the 'bro' deal from the DIYAudio store for doing the build guide!
  Reply With Quote
Old 19th February 2013, 11:21 PM   #226
diyAudio Member
 
sakellogg's Avatar
 
Join Date: Nov 2008
Location: dixon ill
Quote:
Originally Posted by henryve View Post
Got my caps today from Digi-Key. 6 Panasonic THA 33000uF 35V caps. I originally ordered 12, but DK wanted to charge me 60$ shipping for my order even though it was over $200. The other parts were some 3W resistors and pots. I then changed my order to 6 caps to get free shipping. So now I must order the other 6 with some other order. What made me furious was that when the box was delivered this morning by FedEx, the parts (caps and other) was only like 5% the contents of the box, and the box must have weighed heavier than the contents. The other 6 caps could easily have fitted in there and the weight would not have changed by much.

Sometimes it just sucks living down here in never-neverland.
Next time send me a pm. Ill order the stuff n ship it to you.
Got to be cheaper.
I don't mind as long as I have the $ in my play fund. You can paypal me back when u get da stuff.
__________________
I'm not crazy, my mother had me tested
  Reply With Quote
Old 19th February 2013, 11:32 PM   #227
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
It can be if you go standard shipping. USPS just increased the price on their flat rate boxes. You would need a medium flat rate box for what je ordered and i think the price is around what they quoted him.
__________________
...Shape the sound , Man!
  Reply With Quote
Old 19th February 2013, 11:32 PM   #228
6L6 is offline 6L6  United States
diyAudio Member
 
6L6's Avatar
 
Join Date: Oct 2010
Location: Denver, Colorado
The Aleph J should be fine in a 4U 300mm 'Jack of all chassis'. Of course, there is no such thing as 'too much heatsink', so if you are inclined to experiment, the big case is a good deal.
  Reply With Quote
Old 20th February 2013, 04:30 AM   #229
henryve is offline henryve  South Africa
diyAudio Member
 
henryve's Avatar
 
Join Date: Jun 2008
Location: Strand
Quote:
Originally Posted by sakellogg View Post
Next time send me a pm. Ill order the stuff n ship it to you.
Got to be cheaper.
I don't mind as long as I have the $ in my play fund. You can paypal me back when u get da stuff.
Thanks for the offer. I will keep it in mind for next time.
  Reply With Quote
Old 25th February 2013, 06:25 PM   #230
diyAudio Member
 
grimberg's Avatar
 
Join Date: Oct 2002
Location: California, USA
Here is a progress report on the prototype boards 6L6 sent me.
For this initial build I decided to use the schematic Nelson Pass posted here:

Aleph J Schematic

So I installed jumpers on the positions of the optional components.

Click the image to open in full size.

Click the image to open in full size.

Next I installed the Zener...

Click the image to open in full size.

... and the regular resistors. I used Vishay/Dale RN60 and CMF60.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

I then installed the power resistors, leaving a gap at the bottom so they don't touch the PCB.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
Attached Images
File Type: jpg Jumpers.JPG (189.8 KB, 406 views)
File Type: jpg JumperR27.JPG (173.0 KB, 403 views)
File Type: jpg Zener.JPG (159.5 KB, 402 views)
File Type: jpg Dales1.JPG (109.9 KB, 397 views)
File Type: jpg Dales2.JPG (112.5 KB, 397 views)
File Type: jpg Dales3.JPG (108.9 KB, 395 views)
File Type: jpg Panasonics1.JPG (110.3 KB, 398 views)
File Type: jpg Panasonics2.JPG (73.6 KB, 400 views)
File Type: jpg Panasonics3.JPG (75.5 KB, 403 views)
  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
Universal Mounting Specification rsdio Construction Tips 3 31st October 2011 11:51 AM
what is the mounting depth and mounting diameter of this? lemans23 Multi-Way 2 26th October 2005 10:52 PM
Has anybody built an Aleph-x to this spec??? D3 Pass Labs 58 16th June 2004 06:08 PM
Spec on transformer for Aleph 5? Tony D. Pass Labs 8 24th April 2002 12:49 PM


New To Site? Need Help?

All times are GMT. The time now is 10:52 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