Hey Guys!
I have found an electronic supplier, who has these parts on stock.
Firstly, I want to ask if anyone is interested in buying them. I don't know how many they have, but if there is enough interest, I can ask them.
I live in Europe, so shipping from Europe would be easy.
The prices on the website are:
1.62 USD for the 2SJ74GR/BL
1.16 USD for the 2SK170GR/BL
Please reply to this thread if you are interested in buying!
I have found an electronic supplier, who has these parts on stock.
Firstly, I want to ask if anyone is interested in buying them. I don't know how many they have, but if there is enough interest, I can ask them.
I live in Europe, so shipping from Europe would be easy.
The prices on the website are:
1.62 USD for the 2SJ74GR/BL
1.16 USD for the 2SK170GR/BL
Please reply to this thread if you are interested in buying!
At those prices you're very likely getting swindled.The prices on the website are:
1.62 USD for the 2SJ74GR/BL
1.16 USD for the 2SK170GR/BL
If something seems to be too good to be true...
I came across this warehouse over the internet. I might order a pair from them to see how it turns out...
Actually, here in eastern Eu, there are a lot of obsolete parts in old warehouses who sell them, not even looking at international prices... I have seen multiple "rare" components over the years here in Hungary... like the BC184C, which is obsolete as I saw, but here, they are still selling it for 0.1 USD a piece!
Actually, here in eastern Eu, there are a lot of obsolete parts in old warehouses who sell them, not even looking at international prices... I have seen multiple "rare" components over the years here in Hungary... like the BC184C, which is obsolete as I saw, but here, they are still selling it for 0.1 USD a piece!
Yes, it is that one!
Sorry for not posting that earlier!
EDIT: I have called the shop earlier today. They told me I can test them, and if I am not satisfied, they will take it back. The owner also told me many people were buying this JFET from him, and no one complained yet over the years.
So please, let me know, if there is any way I can look if they are original or not
Sorry for not posting that earlier!
EDIT: I have called the shop earlier today. They told me I can test them, and if I am not satisfied, they will take it back. The owner also told me many people were buying this JFET from him, and no one complained yet over the years.
So please, let me know, if there is any way I can look if they are original or not
Last edited:
IDSS = 3mA
even if it's real, this is the lowest Idss of GR grade. for the price of each item unmatched, I think the price is standard market rate and nothing special. I even get my matched 2SK170BL for only $3/pair
get a close picture of each jfet side, better if you have Macro function on you camera. sometimes expert can look at the lettering if they are real or not. but for testing it will require you build jfet tester
even if it's real, this is the lowest Idss of GR grade. for the price of each item unmatched, I think the price is standard market rate and nothing special. I even get my matched 2SK170BL for only $3/pair
get a close picture of each jfet side, better if you have Macro function on you camera. sometimes expert can look at the lettering if they are real or not. but for testing it will require you build jfet tester
Last edited:
https://www.mouser.com/datasheet/2/408/6903-18063.pdf
2SK170-BL PDF Datasheet - Toshiba America, Inc. - Datasheets360.com
Please show the photos after jfet's reception from this source
2SK170-BL PDF Datasheet - Toshiba America, Inc. - Datasheets360.com
Please show the photos after jfet's reception from this source
Items came!
Hey guys! Quick update:
The sample items came. I ordered 1 of each: 2SK170GR and BL, also 2SJ74GR and BL
I have made some measurements on them, and this came out:
2SK170BL
Idss = 11,9 mA
Id = 0,96mA @ Vg 0,68V
Id = 0 mA @ Vg 1,1V
2SK170GR
Idss = 3,3 mA
Id = 0,45mA @ Vg 0,32V
Id = 0 mA @ Vg 0,63V
2SJ74BL
Idss = 9,5 mA
Id = 1,8mA @ Vg 1,2V
Id = 0 mA @ Vg 2V
2SJ74GR
Idss = 2,6 mA
Id = 0,78mA @ Vg 0,53V
Id = 0 mA @ Vg 1,1V
I have attached 3 images of the JFETs.
If you guys have any more ideas how can I test them if they are real, feel free to let me know!
Hey guys! Quick update:
The sample items came. I ordered 1 of each: 2SK170GR and BL, also 2SJ74GR and BL
I have made some measurements on them, and this came out:
2SK170BL
Idss = 11,9 mA
Id = 0,96mA @ Vg 0,68V
Id = 0 mA @ Vg 1,1V
2SK170GR
Idss = 3,3 mA
Id = 0,45mA @ Vg 0,32V
Id = 0 mA @ Vg 0,63V
2SJ74BL
Idss = 9,5 mA
Id = 1,8mA @ Vg 1,2V
Id = 0 mA @ Vg 2V
2SJ74GR
Idss = 2,6 mA
Id = 0,78mA @ Vg 0,53V
Id = 0 mA @ Vg 1,1V
I have attached 3 images of the JFETs.
If you guys have any more ideas how can I test them if they are real, feel free to let me know!
Attachments
The group buy has not started yet, ad it is not yet clear if these are original or not... I'm going to wait for someone more knowledgeable than me to tell it...
If these ARE originals, I'll ask the online shop to tell me what stock they have.
If the group buy will start, I'll tell it.
If these ARE originals, I'll ask the online shop to tell me what stock they have.
If the group buy will start, I'll tell it.
@ Obisix...if they are real, feel free to let me know!
Jfet's looks like fake sadly not Toshiba brand
do you see all differences ? Thanks anyway
Attachments
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- Group Buys
- Original 2SK170 / 2SJ74 GB