Building a symmetrical psu B1 buffer - Page 49 - 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 21st November 2009, 04:35 AM   #481
udailey is offline udailey  United States
diyAudio Member
 
Join Date: Mar 2008
Phil
Spencer has gobs of them. They are real. He is in Hong Kong. I think its $37 for 100 which is a steal. Just search DIYaudio for 2sk170 and he will be in first ten hits in the marketplace.
Uriah
__________________
purchase LDRs anytime Also try my Resistor Replacers or LDR based Input Selector Email me. diyldr@gmail.com
  Reply With Quote
Old 21st November 2009, 05:47 AM   #482
Salas is online now Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Hey, don't drain the pool if 100's aren't to be used. The guy sells matched pairs too.

In Germany, easy for EU members http://www.hifituning24.de/0000009b2...b340c28bce.php
  Reply With Quote
Old 21st November 2009, 11:34 AM   #483
Tea-Bag is offline Tea-Bag  United States
not politcally affiliated
diyAudio Member
 
Tea-Bag's Avatar
 
Join Date: Feb 2006
Location: Kennebunk
Blog Entries: 7
Company Store and I beleive andrewT has some matched one's for sale.
__________________
Salas Boards 2014 #2 SHIPPING |F5TC board and power supplies available PM | Hot-Rod DCB1 boards and kits available PM |Mesmerize kits available (no boards)
  Reply With Quote
Old 21st November 2009, 11:36 AM   #484
Tea-Bag is offline Tea-Bag  United States
not politcally affiliated
diyAudio Member
 
Tea-Bag's Avatar
 
Join Date: Feb 2006
Location: Kennebunk
Blog Entries: 7
Can I get people who have not received their boards still to send me a private message?
Trying to get a feel for where we are at. I expect they should all be there by the end of the month. Everyone in the states should have theirs (one exception).

Thanks!
__________________
Salas Boards 2014 #2 SHIPPING |F5TC board and power supplies available PM | Hot-Rod DCB1 boards and kits available PM |Mesmerize kits available (no boards)
  Reply With Quote
Old 21st November 2009, 11:40 AM   #485
diyAudio Moderator Emeritus
 
jean-paul's Avatar
 
Join Date: Sep 2002
Location: Germany
Quote:
Originally Posted by Tea-Bag View Post
Everyone in the states should have theirs (one exception).
Don't tell me that person is you !

BTW after having been busy for too long with pairing FETS and LEDs I just built one with yellow unmatched LEDs and Jfets with 7,5 mA ( upper ) and 8,8 mA ( lower ). I ended up with 10,5 V + and 10,3 V -. At the outputs I have 37 mV offset. Not bad considering I did not pair a thing I think ?

I received new Jfets today and I will continue pairing to get the offset down.
__________________
It's only audio. Official member of the Norske Brillegeit Gang.

Last edited by jean-paul; 21st November 2009 at 12:01 PM.
  Reply With Quote
Old 21st November 2009, 11:54 AM   #486
Tea-Bag is offline Tea-Bag  United States
not politcally affiliated
diyAudio Member
 
Tea-Bag's Avatar
 
Join Date: Feb 2006
Location: Kennebunk
Blog Entries: 7
Nay, I have working one, and about 45 other boards sitting in a box, and a set of LDR's that I really want to integrate here.
I am pretty sure my offset is about 1mv each side with a typical IDSS matched quad of Fets at 7.5ma.
__________________
Salas Boards 2014 #2 SHIPPING |F5TC board and power supplies available PM | Hot-Rod DCB1 boards and kits available PM |Mesmerize kits available (no boards)
  Reply With Quote
Old 21st November 2009, 12:03 PM   #487
diyAudio Moderator Emeritus
 
jean-paul's Avatar
 
Join Date: Sep 2002
Location: Germany
The lower Jfets are supposed to have a higher Idss isn't it ? At least that is what I understood from various posts.
__________________
It's only audio. Official member of the Norske Brillegeit Gang.
  Reply With Quote
Old 21st November 2009, 12:12 PM   #488
diyAudio Member
 
Join Date: Jun 2009
Send a message via Yahoo to kannan_s
Quote:
Originally Posted by Phil Townsend View Post
Mouser does not seem to have any 2SK170... at leastnot for 8 weeks!!!

Anybody out there have some Jfet's they wanna let go of???
Or a link will do just fine

Thanks
Spencer in this site can sell even matched sets - many have bought from him.
Also ebay has many hong kong sellers selling this FET.
You can try reading this thread for more such sources for this item
Kannan
  Reply With Quote
Old 21st November 2009, 12:28 PM   #489
billyk is offline billyk  United States
diyAudio Member
 
billyk's Avatar
 
Join Date: Oct 2005
Location: North Central Mass, USA
I have some unmatched. PM me if you want them.
  Reply With Quote
Old 21st November 2009, 12:43 PM   #490
Tea-Bag is offline Tea-Bag  United States
not politcally affiliated
diyAudio Member
 
Tea-Bag's Avatar
 
Join Date: Feb 2006
Location: Kennebunk
Blog Entries: 7
Jean-Paul, you may be right. This concept is fuzzy too me.
However my offset is much lower than yours, and can confirm it doesn't sound bad

I have bought 100pcs from Spencer, they work dandy.
__________________
Salas Boards 2014 #2 SHIPPING |F5TC board and power supplies available PM | Hot-Rod DCB1 boards and kits available PM |Mesmerize kits available (no boards)
  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
New-building of my B1 buffer Babowana Pass Labs 328 20th February 2010 01:14 AM


New To Site? Need Help?

All times are GMT. The time now is 12:11 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