Group Buy: Linear Systems LSK389 / LSK170 JFETs (i.e. Toshiba 2sk389/2sk170 subs) - Page 14 - diyAudio
Go Back   Home > Forums > Commercial Sector > Group Buys

Group Buys Members group buys

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 October 2008, 03:28 AM   #326
diyAudio Member
 
Join Date: Dec 2005
Location: Seattle, WA, USA
Try http://www.ampslab.com/components_fets.htm for both 2SJ74BL and 2SK170BL. I just got 20 of each last week, $1 each. Mike is a great guy and reputable seller.

Bob G.
__________________
I don't need to spend money on my system for something only you can hear....
  Reply With Quote
Old 2nd March 2009, 08:44 PM   #327
diyAudio Member
 
Join Date: Jan 2006
Location: North west England
Hi Folks

I have just found a distributor near me who supplies lsk389s. I wondered how people have found these parts compared to the 2sk389 originals. I am going to make some discrete opamps and wondered whether to get the lsk389s. Can you recommend them?

cheers

Aidan
  Reply With Quote
Old 3rd March 2009, 12:51 AM   #328
diyAudio Member
 
Join Date: Aug 2008
hi im interested, care to drop me a pm with link (or details?)... GBP is the only currency somewhat "OK" against this crap currency we have here
  Reply With Quote
Old 5th March 2009, 09:42 PM   #329
diyAudio Member
 
Join Date: Jan 2006
Location: North west England
This place in the UK sells LSK389B for £3.65 each.

http://www.ditech.co.uk/default.aspx

They also sell Lsk389A and LSK389C for £2.40 and £3.25.

  Reply With Quote
Old 18th March 2009, 12:57 PM   #330
avian is offline avian  Australia
diyAudio Member
 
Join Date: Dec 2003
Location: earth
Cant seem to find them on the site. Any hints on where to browse would be appreciated.
  Reply With Quote
Old 18th March 2009, 10:58 PM   #331
ashaw is offline ashaw  Australia
diyAudio Member
 
Join Date: Jul 2006
oh I just got off the phone with linear systems,
It seems that they plan to release the LSK74 in the june timeframe.
  Reply With Quote
Old 14th May 2009, 04:48 AM   #332
diyAudio Member
 
luvdunhill's Avatar
 
Join Date: Jul 2006
Quote:
Originally posted by ashaw
oh I just got off the phone with linear systems,
It seems that they plan to release the LSK74 in the june timeframe.

I've heard the same thing
  Reply With Quote
Old 14th May 2009, 09:33 AM   #333
JohanB is offline JohanB  Sweden
diyAudio Member
 
Join Date: May 2009
Location: Stockholm
Default 2SK389-GR

Hi Folks,
I've many genuin Toshiba 2SK389-GR in the original 7-pin case for sale. Sorry no 109's. Search 2SK389 in trading posts for more info. Can sen worldwide !

JohanB
Attached Images
File Type: jpg transistorer 002.jpg (41.0 KB, 755 views)
  Reply With Quote
Old 14th May 2009, 03:50 PM   #334
diyAudio Member
 
EDDELARUE's Avatar
 
Join Date: Nov 2004
Location: Brasilia
Send a message via MSN to EDDELARUE Send a message via Skype™ to EDDELARUE
Hi JohanB,

how is the price for each ?

Regards

eD
  Reply With Quote
Old 14th May 2009, 04:27 PM   #335
JohanB is offline JohanB  Sweden
diyAudio Member
 
Join Date: May 2009
Location: Stockholm
Default 2SK389-GR

US$ 8 /each
P/P as 1:st class air mail worldwide US$ 4
Registred mail add US$ 8
I have PayPal account

Packing date is (yymm) 9301 Date production code 2K (probably nov 1992).
I bought them myself in 1993 and have had them all years since then. They have been resting in their antistatic bags on my shelf.... This is the real thing. GUARANTEED TOSHIBA !!

JohanB
Attached Images
File Type: jpg transistorer 005.jpg (54.6 KB, 720 views)
  Reply With Quote
Old 1st November 2009, 11:56 PM   #336
diyAudio Member
 
astouffer's Avatar
 
Join Date: Jun 2004
Location: Pittsburgh, crumbling wasteland
Anyone have a pair of LSK389s in the metal cans for sale?
  Reply With Quote
Old 3rd November 2009, 08:04 PM   #337
diyAudio Member
 
Join Date: Jan 2008
Location: Lehigh Valley PA USA
Default lsk389 for sale

Quote:
Originally Posted by astouffer View Post
Anyone have a pair of LSK389s in the metal cans for sale?
I just called a distributor for Linear Systems, Trendsetter Electronics. Their main website is Trendsetter Electronics: Home. They have a location in Texas that has A,B, and C grades of lsk389s in the TO-71 case for $7.25ea in quantities from 1-99. (Shipping is extra). The specific website for this place in TX is:
Source ESB:**Source for electronic manufacturers, distributors, products and value added services
Phone # is 800-310-3050.
I'll probably get 2 or 3, but don't know anything about organizing a group buy.
Any takers?
  Reply With Quote
Old 4th November 2009, 10:55 PM   #338
diyAudio Member
 
astouffer's Avatar
 
Join Date: Jun 2004
Location: Pittsburgh, crumbling wasteland
Many thanks. The website looked like a typical parts broker with no prices and the promise to get back to you. As if test equipment or electronics parts fluctuate like stock prices. Why not just list the price?
  Reply With Quote
Old 4th November 2009, 11:54 PM   #339
sonidos is offline sonidos  United States
Libertador de la Música
diyAudio Member
 
sonidos's Avatar
 
Join Date: Jul 2007
Location: Round Rock, TX
Wow! These Trendsetter guys are practically in my back yard! Literally. Like 3 or 4 miles away.
  Reply With Quote
Old 5th November 2009, 01:07 AM   #340
diyAudio Member
 
Join Date: Jan 2008
Location: Lehigh Valley PA USA
Quote:
Originally Posted by sonidos View Post
Wow! These Trendsetter guys are practically in my back yard! Literally. Like 3 or 4 miles away.
OK, then....your job (should you decide to accept it) is to engage in a business transaction, and report back to HQ!
  Reply With Quote
Old 5th November 2009, 03:34 AM   #341
sonidos is offline sonidos  United States
Libertador de la Música
diyAudio Member
 
sonidos's Avatar
 
Join Date: Jul 2007
Location: Round Rock, TX
I'll contact my partner in crime, Uriah Dailey. He headed up the LDR group buy and has more experience (way more than I do). Let's see if he and I can put our heads together and help our friends in need.
  Reply With Quote
Old 5th November 2009, 04:49 AM   #342
sonidos is offline sonidos  United States
Libertador de la Música
diyAudio Member
 
sonidos's Avatar
 
Join Date: Jul 2007
Location: Round Rock, TX
Ok Guys, I'll look into this with Trendsetter. LSK389 and LSK170s. No promises, but if we can make this a go, I will let you know. Please send me a PM with your interest so I can put my head around what numbers we might expect.

I just shipped several LDRs and going first class in the US and international was $2 to $3 shipping US Postal service for as many as 24 pcs., which I think is reasonable but we'll see how that comes out, too. Lower price is better!

Last edited by sonidos; 5th November 2009 at 04:53 AM.
  Reply With Quote
Old 16th November 2009, 04:40 PM   #343
ra7 is offline ra7  United States
diyAudio Member
 
Join Date: Feb 2009
Blog Entries: 1
Hey folks... I'm new to this GB. I've ran out of 2sk170.

Is this still on? Over already? Does anyone have these parts?

Thanks.
  Reply With Quote
Old 16th November 2009, 05:11 PM   #344
diyAudio Member
 
Join Date: Jan 2008
Location: Lehigh Valley PA USA
Quote:
Originally Posted by ra7 View Post
Hey folks... I'm new to this GB. I've ran out of 2sk170.

Is this still on? Over already? Does anyone have these parts?

Thanks.
You can get 'em from ampslab.com for $1ea (20pc min). I got mine from them & they arrived quickly. FYI....
  Reply With Quote
Old 16th November 2009, 07:00 PM   #345
ra7 is offline ra7  United States
diyAudio Member
 
Join Date: Feb 2009
Blog Entries: 1
Thanks windowman. I was aware of that site. I'm looking for the GR grade though.
Besides if the lsk170 is available, I'd like to try those as well.

Thanks.
  Reply With Quote
Old 19th November 2009, 12:32 AM   #346
ra7 is offline ra7  United States
diyAudio Member
 
Join Date: Feb 2009
Blog Entries: 1
Can there be a round two of this GB? I'm sure many would get on board.
  Reply With Quote
Old 19th November 2009, 08:17 PM   #347
alazira is offline alazira  United States
diyAudio Member
 
alazira's Avatar
 
Join Date: Jun 2007
Location: Las Vegas
Blog Entries: 1
Quote:
Originally Posted by ra7 View Post
Thanks windowman. I was aware of that site. I'm looking for the GR grade though.
Besides if the lsk170 is available, I'd like to try those as well.

Thanks.
Hi,
I ordered k170's from futurlec and received mostly GR grade (one out of 10 was BL). Only $0.20 each
  Reply With Quote
Old 4th January 2010, 06:13 AM   #348
diyAudio Member
 
Join Date: Jan 2008
Any comments on the linear Systems 2sk389 ? I'm trying to source a replacement dual n-channel jfet for a "proprietary" Yamaha chip, which I suspect is just a potted monolithic dual n-channel Jfet.

I do realize I'm something like two years late to the party...
  Reply With Quote
Old 21st March 2010, 01:38 AM   #349
diyAudio Member
 
Sunsun22's Avatar
 
Join Date: Jul 2004
Location: Hong Kong
Default 2sk170GR and 2sJ74GR

Quote:
Originally Posted by ra7 View Post
Thanks windowman. I was aware of that site. I'm looking for the GR grade though.
Besides if the lsk170 is available, I'd like to try those as well.

Thanks.

I bought 200 each (both GR and BL) from a Japan electronic shop for matching to build a phono amp. I have a bunch left and can sell them at

2sk170, GR or BL at US$0.8 each
2sj74, GR or BL at US$1.3 each

Match pair (+ - 10%) need to add US$1 per pair using Erno's matching method on his webpage. Postage and handling is flat at US$7 with register air parcel post from Hong Kong.

Last edited by Sunsun22; 21st March 2010 at 01:48 AM.
  Reply With Quote
Old 29th June 2012, 02:01 PM   #350
diyAudio Member
 
Join Date: Apr 2010
I ask there is the following inventory
LSK389 (TO-71 metal can):
"C" $5.59

LSK170 (TO-92)
"C" $0.80









Quote:
Originally Posted by luvdunhill View Post
well, well, well... I just got off the phone with my local distributor for Linear Systems parts and would like to see if there is any interest in these parts.

The LSK389 is a drop-in replacement for those pesky Toshiba parts, and reported by some to have better specs even than the original. Here's a datasheet:

http://www.linearsystems.com/datasheets/LSK389.pdf

available in the usual Idss flavors, but with different names.

Also, for your viewing pleasure is the now out of production single version of the above. Here's a datasheet:

http://www.linearsystems.com/datasheets/LSK170.pdf

The distributor says they might be willing to mix and match Idss grades for us DIYers, and the order target is 100 pieces of the LSK389 and 100 pieces of the LSK170. So, if you're interested please state your Idss preference.

Now for prices (assuming quantity 100):

LSK389 (TO-71 metal can):
"A" $6.08
"B" $5.87
"C" $5.59

LSK170 (TO-92)
"A" $1.13
"B" $0.95
"C" $0.80

There needs to be another 8.25% sales tax added to the above part cost and shipping is free as they're located in my backyard (almost literally).

Rules for the group buy will be very similar to what I did for the ROE MKP1837 group buy(s) and will be posted later on. I may instantiate a minimum order if I so fancy one as these group buys are lots of work. This will be easier than 6,000 little blue boxes, but still....

Shipping to you will probably be $2 in the US and $4 internationally, depending on quantity. I will only accept PayPal with a 3% charge for US and 4% charge for International. Upfront, you'll be responsible for the number of parts and the PayPal fees and I will bill you later for actual shipping and any other charges that might have cropped up due to mis-estimation (that's not a word, is it...).

Next price break is at 1000, which may be feasible if the heavy rollers step in

So, have at it!
  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
Which JFets for audio use? (other than the 2SK170,389,109 and 74) Bricolo Parts 68 18th February 2011 05:40 PM
2sk170- Lsk170 Stanco Parts 1 11th September 2007 06:18 PM
WTB: Linear Systems LSK389 cartman Swap Meet 0 16th July 2007 07:36 PM
2sk170 replacement from Linear Systems mirlo Parts 3 15th April 2005 01:56 PM


New To Site? Need Help?

All times are GMT. The time now is 06:19 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