2SK389 replacement - diyAudio
Go Back   Home > Forums > Design & Build > Parts

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

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 20th August 2007, 07:40 AM   #1
Hyldal is offline Hyldal  Denmark
diyAudio Member
 
Join Date: Sep 2006
Default 2SK389 replacement

Do anyone know of another dualfet that can replace a 2SK389. It does not have to be the same package. I have looked at 2SK2145 and 2SK2145, SMD parts from Toshiba, but they semes also to be har d to find. Does anyone know are they also about to be obsolite?
  Reply With Quote
Old 20th August 2007, 11:14 AM   #2
acid_k2 is offline acid_k2  Italy
diyAudio Member
 
Join Date: Oct 2006
A replacement for Toshiba's discontinued 2SK389 is available from Linear Integrated Systems.

Try finding LSK389
  Reply With Quote
Old 20th August 2007, 01:58 PM   #3
Hyldal is offline Hyldal  Denmark
diyAudio Member
 
Join Date: Sep 2006
Thank you for the input. If others have a good dual fet to recommend, I would like to know. to have as many alternatives as possible.
  Reply With Quote
Old 24th August 2007, 04:38 AM   #4
BrianL is offline BrianL  United States
diyAudio Member
 
Join Date: Mar 2002
Location: USA
You do not have a whole lot of options. In general, discrete semiconductors, especially small-signal units, are decreasing in availability and variety. Small-signal FETs have always been a niche market and are are more so these days. Linear Systems seems to be surviving by re-creating defunct but unique-and-useful discretes, much like Oliver Q. Germanium did 20 years ago, and have picked up the 2SK389. Ten years ago there were not that many duals available, and there are even less today. Don't think you'll have a dozen different p/n's to choose from.

Be happy if you can purchase LSK389's for low-noise duals
__________________
bel
  Reply With Quote
Old 26th August 2007, 09:39 PM   #5
diyAudio Member
 
Join Date: Jul 2006
Do you need many? I have them in GR, BL and V versions.

Roar
  Reply With Quote
Old 2nd September 2007, 07:00 PM   #6
Ryssen is offline Ryssen  Sweden
diyAudio Member
 
Ryssen's Avatar
 
Join Date: Dec 2003
Location: Sweden--> Here
Quote:
Try finding LSK389
There are samples..
__________________
Regards Åke
  Reply With Quote
Old 2nd September 2007, 08:24 PM   #7
diyAudio Member
 
Join Date: Jul 2006
Default 2SK389/2SJ109

Sorry if I were unclear. I have original Toshiba 2SK389/2SJ109 in GR, BL and V versions.
  Reply With Quote
Old 16th November 2007, 06:15 PM   #8
vmoreau is offline vmoreau  France
diyAudio Member
 
Join Date: Nov 2007
Hello Roar Malmin,

I'm a newbie in this forum and would like to start a DIY project (diff preamp) based on Toshiba 2SK389/2SJ109 FET pairs.
I have found your post which is quite old... but I can't mail you for the moment (forum restriction for newbies).
Do you still have some 2SK389/2SJ109 to sell ? What would be the prices for each grade.
Thanks.
Hope to get some news soon !
Vincent
  Reply With Quote
Old 29th November 2007, 10:41 PM   #9
diyAudio Member
 
t_blizzard's Avatar
 
Join Date: Nov 2007
Vishay has dual fets.
They can be found at:
http://www.vishay.com/fets-small-signal/SSFsgdnchjP/
  Reply With Quote
Old 30th November 2007, 03:35 AM   #10
diyAudio Member
 
t_blizzard's Avatar
 
Join Date: Nov 2007
Quote:
Originally posted by Hyldal
Thank you for the input. If others have a good dual fet to recommend, I would like to know. to have as many alternatives as possible.
Vishay offers dual fets like the U404 and U406.
  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
Wtb: 2sk389-bl Buhl Swap Meet 7 7th May 2009 07:36 PM
2sk3320 or 2sk2145 replacement for 2sk389? hifimaker Pass Labs 2 2nd December 2008 08:18 AM
2SK389 and MPS 18 Stefanoo Pass Labs 24 8th April 2007 08:51 AM
2SK389 sunrise Parts 3 24th September 2005 08:00 AM


New To Site? Need Help?

All times are GMT. The time now is 08:21 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