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Old 8th January 2015, 05:43 PM   #1
diyAudio Member
 
Join Date: Dec 2011
Location: China
Default Parts for sale

poor language capability,genuine parts.
can be curve tracer matched.

genuine parts guaranteed by me, sound quality guaranteed by you.

NEC 2SK163-L unmatched 0.6$ each,matched 0.7$ each.
NEC 2SK163-M unmatched 0.5$ each,matched 0.6$ each.
NEC 2SJ44-L unmatched 4$ each,matched 4.5$ each.
NEC 2SJ44-M unmatched 3.5$ each,matched 4$ each.

Toshiba 2SK369-V unmatched 3.5$ each,matched 4$ each.
Toshiba 2SK246-GR unmatched 0.8$ each, matched 1$.
Toshiba 2SJ103-GR BL unmatched 0.6$ each, matched 0.7$.

2SK170GR and 2SJ74GR, 200 pairs available,12$ per pair.
2SK170V and 2SJV , 50 pairs available,20$ per pair.

toshiba 2SA970GR, 2SC2240GR available, 2$ per pair.
hitachi 2SK216, 2SJ79 available, 20$ per pair,
renesas 2SK213, 2SJ76 available, 20$ per pair,

2SJ74V, 5$ each, minimum order quantity: 500pcs.

pls add a post and sent me a PM with the following information:
Forum ID:
Real Name:
Shipping address:
The list of items, the quantity, and options (matched, unmatched, or special request)

Payment:
Exclusively by PayPal. PayPal fee is always inclusive in prices shown.
Price are shown in USD$.
Shipment by China Post Registered Air Mail . more than 250$, only by EMS or UPS or FedEx, EMS will be the first choice,and 29$ to 39$ will be charged.
If anyone did not receive your package with 21 days from my shipment notice, please let me know.
For order under $100, $6 shipping/packaging fee will be charged.
Attached Images
File Type: jpg jfet_curve_tracer01.JPG (172.7 KB, 930 views)

Last edited by ambrosia168; 28th April 2016 at 12:17 PM. Reason: Add new parts.
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Old 8th January 2015, 06:46 PM   #2
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Join Date: Dec 2011
Location: China
All new old stock. can be matched by curve tracer.
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Old 10th January 2015, 06:51 AM   #3
diyAudio Member
 
Join Date: Dec 2011
Location: China
Cool FS: NEC 2SK163 2SJ44 NOS JFET MATCHED

19 years NEC genuine NOS 2sk163 2sj44 for sale.
the 2sj44 is 40V, vs 2sj74's 25V.

genuine parts guaranteed. See the picture below for details.
can be matched by curve tracer.

Once upon a time, in the jungle of fake parts, there are some genuine parts shining quietly.

NEC 2SK163-L unmatched 0.6$ each,matched 0.7$ each.
NEC 2SK163-M unmatched 0.5$ each,matched 0.6$ each.
NEC 2SJ44-L unmatched 4$ each,matched 4.5$ each.
NEC 2SJ44-M unmatched 3.5$ each,matched 4$ each.

pls sent me a PM with the following information:
Forum ID:
Real Name:
Shipping address:
Paypal account email:
The list of items, the quantity, and options (matched, unmatched, or special request)

Exclusively by PayPal. PayPal fee is always inclusive in prices shown.
Price are shown in USD$.
Shipment by China Post International Registered mail.
If anyone did not receive your package with 21 days from my shipment notice, please let me know.
For order under $50, $4 shipping/packaging fee will be charged.
Attached Images
File Type: jpg jfet_curve_tracer01.JPG (172.7 KB, 781 views)
File Type: jpg IMG_1382.JPG (148.0 KB, 778 views)
File Type: jpg IMG_1387.JPG (160.5 KB, 761 views)
File Type: jpg IMG_1392.JPG (159.1 KB, 742 views)
File Type: jpg IMG_1395.JPG (153.1 KB, 154 views)
File Type: jpg IMG_1399.JPG (156.3 KB, 106 views)
File Type: jpg IMG_1400.JPG (154.6 KB, 113 views)
File Type: jpg IMG_1403.JPG (230.8 KB, 136 views)
File Type: jpg IMG_1404.JPG (208.0 KB, 101 views)
File Type: jpg IMG_1406.JPG (154.6 KB, 116 views)
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Old 10th January 2015, 07:14 AM   #4
diyAudio Member
 
Join Date: Dec 2011
Location: China
datasheets added.
at 3mA, just like 2sk170, the |yfs| is about 17.
Attached Files
File Type: pdf nec 2sj44.pdf (62.2 KB, 49 views)
File Type: pdf nec 2sk163.pdf (57.2 KB, 32 views)
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Old 10th January 2015, 10:16 AM   #5
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
At 3mA, the Yfs values according to our measurements on real devices are :

2SK163L 17mS, 2SK170GR 22mS,
2SJ44L 17mS, 2SJ74 28mS.

At 4.5mA, the Yfs values of the same devices are :

2SK163L 19mS, 2SK170GR 29mS,
2SJ44L 20mS, 2SJ74 49mS.

So not quite the same.


Best Regards,
Patrick
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xen-audio.com
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Old 10th January 2015, 11:42 AM   #6
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Join Date: Dec 2011
Location: China
Thank you Patrick. I didn't mean the yfs of 2sK163 is same as 2sk170.
sorry, I mean 2sk163's yfs of 9mS is at 1mA,on datasheet, not at 3mA, if like 2sK170, it would be about 17mS.
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Old 10th January 2015, 12:37 PM   #7
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Location: China
as to 2SJ74, 2SJ44'40V, higher voltage swing is at hand.buy some sample, test with a curve tracer , you will know they are genuine NEC parts.
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Old 11th January 2015, 04:48 AM   #8
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Join Date: Dec 2011
Location: China
2sk163 to 2sk16, can be matched to 1%;
2sj44 to 2sj44, can be matched to 1%;
2sk163 to 2sj44, can be matched to 5%.
all at Idss.
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Old 11th January 2015, 10:20 AM   #9
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Join Date: Dec 2011
Location: China
genuine Toshiba 2sk170-bl and 2sj74-bl are available too. samples, 10$ per pair(one 2sk170 and one 2sj74);wholesale 5$ per pair,200 pairs minimum,200pairs,400pairs,600pairs etc.
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Old 11th January 2015, 10:42 AM   #10
SY is offline SY  United States
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Please keep all commercial offerings in this thread.
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