Article: Beast With a Thousand Jfets - 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 19th January 2013, 09:38 PM   #11
The one and only
 
Nelson Pass's Avatar
 
Join Date: Mar 2001
Quote:
Originally Posted by dimkasta View Post
So I guess some matching is also required, so that would be even more expensive
We graded them a little more finely so as to be sure of getting relatively equal
distributions, but actual matching was not necessary, so the cost is the same.

BTW, Patrick's estimate of the cost of the P fets was one channel only.

At $5 apiece, we have almost $12,000 worth of Jfets. I believe I pointed out
elsewhere that I left the leads on the parts long, just in case I needed them
someday.

  Reply With Quote
Old 19th January 2013, 09:53 PM   #12
Vix is offline Vix  Yugoslavia
diyAudio Member
 
Vix's Avatar
 
Join Date: Nov 2003
Location: Somewhere on Planet Earth
So when someday you need them, just taking them out; it will still work, just slightly worse, that is until enough have been taken out.. (I wonder why I am thinking about HAL....)
  Reply With Quote
Old 19th January 2013, 11:45 PM   #13
Blues is offline Blues  United States
Lightning In A Bottle
diyAudio Member
 
Blues's Avatar
 
Join Date: Sep 2003
Location: The Milky Way
All right Mr. Pass...I'll make sure you get them back when you need 'em.

  Reply With Quote
Old 20th January 2013, 02:29 AM   #14
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
> Besides, Patrick, I have a photo of you holding one of the boards. You had
your chance to run away with it....

I already sorted out my own solution.
No less freaky, I can assure you.
But somewhat less costly .....




Patrick
__________________
xen-audio.com
  Reply With Quote
Old 20th January 2013, 02:46 AM   #15
diyAudio Member
 
MEGA_amp's Avatar
 
Join Date: Oct 2003
Location: CT
Group buy?.......lol

A bottle of red is headed your way......loooong overdue

-john
  Reply With Quote
Old 20th January 2013, 04:41 AM   #16
diyAudio Member
 
oneplustwo's Avatar
 
Join Date: Apr 2009
Location: San Francisco
So cool! Any chance you could do something similar with other jfets?
__________________
My Projects
  Reply With Quote
Old 20th January 2013, 04:51 AM   #17
Guiness is offline Guiness  United States
diyAudio Member
 
Guiness's Avatar
 
Join Date: Dec 2002
Location: USA
Excellent article as usual... thank you for the late night reading.
__________________
Guiness
  Reply With Quote
Old 20th January 2013, 05:56 AM   #18
Mr. dB is offline Mr. dB  United States
diyAudio Member
 
Mr. dB's Avatar
 
Join Date: Dec 2003
Location: Arkansas
So are the boards going to be available at PassDIY, or in the DIYAudio Store?
  Reply With Quote
Old 20th January 2013, 07:54 AM   #19
Vix is offline Vix  Yugoslavia
diyAudio Member
 
Vix's Avatar
 
Join Date: Nov 2003
Location: Somewhere on Planet Earth
Hm...smells like El-cheapo version of the Beast...with some cheap J-fets, a group buy would mean a quantity of 10000-50000 or more pieces. If one could get 2000 jfets for 200 bucks, then it becomes a viable option....
  Reply With Quote
Old 20th January 2013, 08:17 AM   #20
Dzius is offline Dzius  Poland
diyAudio Member
 
Dzius's Avatar
 
Join Date: Sep 2010
Location: Warsaw
Isn't it a great chance for producer ? We've got niche market here. It's probably better than The Long Tail theoryin economics. Maybe someone should let them know.
  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
Beast with a Thousand JFETs Nelson Pass Pass Labs 297 18th May 2013 11:38 AM
Guidelines for switching N-channel JFETs to P-channel JFETs (and vica versa)? Test Electrix Construction Tips 9 24th January 2011 06:22 PM
Thought experiment: A thousand 12V car batteries in series bigwill Everything Else 6 21st June 2007 03:56 AM
The Beast... sklimek Tubes / Valves 5 29th June 2005 04:04 PM
Hello from the land of thousand smiles, Thailand fahlap Introductions 2 26th December 2004 05:32 AM


New To Site? Need Help?

All times are GMT. The time now is 08:46 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