Group Buy: Linear Systems LSK389 / LSK170 JFETs (i.e. Toshiba 2sk389/2sk170 subs)

[Brett]

Got mine today thank you.

 

[claudio]

Mine arrived too.

Thanks.

 

[chertk]

Marc,
just received JFETs
So time to play with little bugs
Thanks for you time

 

[Rambi]

Received

Hi Marc,

I received my sets today.

Thank you!

Remco

 

[Jonathan Bright]

Just a technical question about complements. The LSJ74 are still in gestation and original 2SJ74 are a rare/expensive commodity (especially in this neck of the woods, "The Global South").

I don't understand the basics of FETs very well so this question may be stupid but can we build a low noise complement to the LSK170s that we now own by running a few 2N5460's (or similar) in parrallel the way we can with bipolars? (i.e. LM394 etc)

If so, can anyone suggest an online tute' or place where we can learn how?
Thanks, Jonathan

 

[bobgroger]

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.

 

[chalkandtalk]

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

 

[tritosine]

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

 

[chalkandtalk]

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.

 

[avian]

Cant seem to find them on the site. Any hints on where to browse would be appreciated.

 

[ashaw]

oh I just got off the phone with linear systems,
It seems that they plan to release the LSK74 in the june timeframe.

 

[luvdunhill]

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

 

[JohanB]

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

 

[EDDELARUE]

Hi JohanB,

how is the price for each ?

Regards

eD

 

[JohanB]

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

 

[astouffer]

Anyone have a pair of LSK389s in the metal cans for sale?

 

[windowman99]

lsk389 for sale

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?

 

[astouffer]

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?

 

[sonidos]

Wow! These Trendsetter guys are practically in my back yard! Literally. Like 3 or 4 miles away.

 

[windowman99]

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!