Group Buy: Linear Systems LSK389 / LSK170 JFETs (i.e. Toshiba 2sk389/2sk170 subs) - Page 3

jonclancy · 10th July 2008, 08:00 PM

Just for info, I was quoted the following for the SOIC 8 pieces back in March:

MOQ25 = GBP 2.35
100 = GBP 2.10
1000 = GBP 1.60

Plus GBP 15 postage plus 17.5% Tax

The TO-71 was between GBP 3.45 and 3.63 at MOQ.

Your prices look better than ours here in the UK!

I started work on an adapter board, but quickly got beached out of my skill puddle. If there is demand, I could have another go....

Cheers

Jon

Dennis Hui · 10th July 2008, 08:27 PM

Quote:

Originally posted by AndrewT
what price if we hit 1000 of either?
do we have to hit 1000 of each grade?

I got a quote from Linear Systems a few days ago for the
B Idss parts:

LS170B-92, 1000pcs=$0.60ea, Delivery=stock to 6 weeks
LS389B-71, 1000pcs=$5.29ea, Delivery=stock to 6 weeks

zapnspark · 10th July 2008, 08:30 PM

Just an FYI.
You can get reasonably priced SOIC to DIP adaptors in the states at SPARKFUN.COM
Part SKU# BOB-00494
$2.95

ZAP

luvdunhill · 10th July 2008, 09:29 PM

Quote:

Originally posted by zapnspark
Just an FYI.
You can get reasonably priced SOIC to DIP adaptors in the states at SPARKFUN.COM
Part SKU# BOB-00494
$2.95

ZAP

I think we'd be interested in SOIC to 7-Zip adapters.

RogerGustavsson · 10th July 2008, 09:40 PM

I am interested in:

LSK170A-TO92, 10 pcs
LSK170B-TO92, 10 pcs

LSK170A-SOIC 8, 10 pcs
LSK170B-SOIC 8, 10 pcs

Roger Gustavsson

Conrad Hoffman · 10th July 2008, 09:41 PM

I'm in for Q=25 of the LSK170-A in TO-92 @ $1.13 e.

luvdunhill · 10th July 2008, 10:03 PM

just so we're clear, I am not offering the SOIC version yet. Feel free to request them, but until we get to quantity 100, there's not much I can do for ya'll

scott wurcer · 11th July 2008, 02:48 PM

I'll help out Roger and take 100 LSK170 in SOIC

and 10 LSK389. Are the Idss grades still open for choice? The middle or high would both be OK.

For those who care Quan-Tech data for recent samples:

2SK170 @1mA, gm - 11.3mS, noise @10Hz 2.5nV
LSK170 @1mA, gm - 10mS, noise @10Hz 2.3nV

AndrewT · 11th July 2008, 02:54 PM

any ideas why Linear are charging more for the low Idss version (Agrade) than the higher Idss grades?

More difficult/time consuming to make, or higher rejects, or lower yields?

scott wurcer · 11th July 2008, 03:34 PM

Probably just yield/demand balancing.

10th July 2008, 08:00 PM	#21
jonclancy diyAudio Member Join Date: Oct 2002 Location: UK	SOIC? Just for info, I was quoted the following for the SOIC 8 pieces back in March: MOQ25 = GBP 2.35 100 = GBP 2.10 1000 = GBP 1.60 Plus GBP 15 postage plus 17.5% Tax The TO-71 was between GBP 3.45 and 3.63 at MOQ. Your prices look better than ours here in the UK! I started work on an adapter board, but quickly got beached out of my skill puddle. If there is demand, I could have another go.... Cheers Jon

10th July 2008, 09:41 PM	#26
Conrad Hoffman diyAudio Member Join Date: Mar 2007 Location: Canandaigua, NY USA	I'm in for Q=25 of the LSK170-A in TO-92 @ $1.13 e. __________________ I used to be an audiophool like you but then I took an arrow to the knee.

11th July 2008, 02:48 PM	#28
scott wurcer diyAudio Member Join Date: Jan 2004 Location: cambridge ma	I'll help out Roger and take 100 LSK170 in SOIC and 10 LSK389. Are the Idss grades still open for choice? The middle or high would both be OK. For those who care Quan-Tech data for recent samples: 2SK170 @1mA, gm - 11.3mS, noise @10Hz 2.5nV LSK170 @1mA, gm - 10mS, noise @10Hz 2.3nV __________________ Pain is never permanent

11th July 2008, 02:54 PM	#29
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	any ideas why Linear are charging more for the low Idss version (Agrade) than the higher Idss grades? More difficult/time consuming to make, or higher rejects, or lower yields? __________________ regards Andrew T.

11th July 2008, 03:34 PM	#30
scott wurcer diyAudio Member Join Date: Jan 2004 Location: cambridge ma	Probably just yield/demand balancing. __________________ Pain is never permanent


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10th July 2008, 08:30 PM	#23
zapnspark diyAudio Member Join Date: Sep 2006 Location: Midwest	Just an FYI. You can get reasonably priced SOIC to DIP adaptors in the states at SPARKFUN.COM Part SKU# BOB-00494 $2.95 ZAP

10th July 2008, 09:40 PM	#25
RogerGustavsson diyAudio Member Join Date: Aug 2004 Location: Huskvarna	I am interested in: LSK170A-TO92, 10 pcs LSK170B-TO92, 10 pcs LSK170A-SOIC 8, 10 pcs LSK170B-SOIC 8, 10 pcs Roger Gustavsson

10th July 2008, 10:03 PM	#27
luvdunhill diyAudio Member Join Date: Jul 2006	just so we're clear, I am not offering the SOIC version yet. Feel free to request them, but until we get to quantity 100, there's not much I can do for ya'll

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