Semisouth JFET's: What are they good for? - 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 7th October 2009, 01:57 PM   #11
JoshK is offline JoshK  Canada
diyAudio Member
 
Join Date: May 2004
Location: Toronto, ON
I'd like to see the F3 and Aleph J adopted for the SS Jfets.
  Reply With Quote
Old 7th October 2009, 02:00 PM   #12
diyAudio Member
 
Join Date: Mar 2003
Location: Zürich
I would pop it into a F2!
__________________
my surname is indeed 'de Best': neither misspelling nor snobbism! Ask SY!
  Reply With Quote
Old 7th October 2009, 02:29 PM   #13
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
Quote:
Originally Posted by slr 5000 View Post
hi guys
im glad this thread has been started as i was not sure what to use mine for

what about replacing the irfp240 on a aleph 4 clone ?

is this doable and if so would i need the same amount ie 24

regards sheafer
Papa's J amp is pretty much like Aleph , but without Aleph CCS on output

you need more juice from input stage , that's why Papa use paralleled 2SJ109 on input
__________________
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 7th October 2009, 02:34 PM   #14
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
Quote:
Originally Posted by Zen Mod View Post
Papa's J amp is pretty much like Aleph , but without Aleph CCS on output

you need more juice from input stage , that's why Papa use paralleled 2SJ109 on input
More juice?
Would one 2sj109V work?
__________________
Last 2014 Salas GB, ends Nov 30th Here to Sign Up! |F5TC Boards and power supplies available PM| Hot-Rod DCB1 boards and kits available PM |Mesmerize kits available (no boards)
  Reply With Quote
Old 7th October 2009, 02:51 PM   #15
tms0425 is offline tms0425  United States
diyAudio Member
 
Join Date: Oct 2006
Location: Ft. Wayne, IN
Quote:
Originally Posted by JoshK View Post
I'd like to see the F3 and Aleph J adopted for the SS Jfets.
I second the Aleph J or better yet the X'd J since I have two mono chassis and 4 PD boards sitting on my work bench and a few more J109's for juice

Tom
  Reply With Quote
Old 7th October 2009, 03:30 PM   #16
Paper mache horn fabricator
diyAudio Member
 
carpenter's Avatar
 
Join Date: Mar 2002
Location: Oregon City, Oregon
Where do you get these power jfets? I thought they had to be purchased in quantities so large that only someone like Nelson could grab the supplier's attention...
__________________
I enjoy audio so much that I constructed a web site. I share my ideas at: www.inlowsound.com
  Reply With Quote
Old 7th October 2009, 03:38 PM   #17
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
Quote:
Originally Posted by carpenter View Post
Where do you get these power jfets? I thought they had to be purchased in quantities so large that only someone like Nelson could grab the supplier's attention...
look for Magura's GB .... or TeaBag's .
__________________
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 7th October 2009, 03:40 PM   #18
Paper mache horn fabricator
diyAudio Member
 
carpenter's Avatar
 
Join Date: Mar 2002
Location: Oregon City, Oregon
Group buy? Where? Looks like a search is in order! Maybe someone can bring a demo amp to Burning Amp?
__________________
I enjoy audio so much that I constructed a web site. I share my ideas at: www.inlowsound.com
  Reply With Quote
Old 7th October 2009, 03:48 PM   #19
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
Quote:
Originally Posted by Zen Mod View Post
look for Magura's GB .... or TeaBag's .
Only Magura is doing group buy. Just may be wing man as needed.
__________________
Last 2014 Salas GB, ends Nov 30th Here to Sign Up! |F5TC Boards and power supplies available PM| Hot-Rod DCB1 boards and kits available PM |Mesmerize kits available (no boards)
  Reply With Quote
Old 7th October 2009, 03:57 PM   #20
Zen Mod is offline Zen Mod  Serbia
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
Quote:
Originally Posted by Tea-Bag View Post
Only Magura is doing group buy. Just may be wing man as needed.
sorry .....
__________________
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

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
SemiSouth SiC Power JFETs RocketScientist Solid State 105 19th February 2012 09:02 PM
Semisouth JFET GB Magura Group Buys 418 14th December 2010 08:49 AM
Can I replace BF245C JFET with J201 JFET? bigmike216 Parts 2 7th December 2005 07:50 AM
Need good current sink JFET or MOSFET? rlaury Tubes / Valves 7 22nd November 2005 07:14 AM


New To Site? Need Help?

All times are GMT. The time now is 09:00 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