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Old 3rd October 2006, 02:40 PM   #1
GIPIONE is offline GIPIONE  Italy
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Default 2sk170bl Where??

Where is possible to buy a 100pzz. of 2SK170BL at good price.
Thank of all and best regards.

g.pietro

ITALY
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Old 5th October 2006, 06:40 AM   #2
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Hello,
What is the difference between 2SK170BL, 2SK170GR and 2SK170V? You can find them here: http://www.borbelyaudio.com/pics/Compprice.pdf Not very cheap. I live in Sweden, they are sometimes slightly cheaper here and can be found at various places. At Elfa, the largest supplier here, 100 pieces of 2SK170GR (Toshiba) are about 41 € + shipping. I will be needing some myself. Can buy some extra and send them to you if you are interested.

Roger
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Old 5th October 2006, 09:50 AM   #3
GIPIONE is offline GIPIONE  Italy
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The suffix GR, BL and V are the different Idss of the jfet, and is very important for the different use that you made.
If use in signal preamplifier of small signal o driver, o out of small amplifier ( type OA with discrete device).
I know Borbely, but I think that Elfa is good price and I try to buy from there.
Other important question is that is in Europe and isn’t import tax.
Regards

Gp

p.s. if need you ask.
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Old 5th October 2006, 10:02 AM   #4
lineup is offline lineup  Sweden
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i dont know exactly about prices
but
Quote:
1- 25- 100-
prices in € euro, is no rip off, as i can understand
for
2SK170GR7/Toshiba original
0.717 € - 0.521 € - 0.405 €
I will order some 2SK170GR myself
They are very useful for audio! .. have a look at www.passdiy.com
..
as well as I will at same time
also order the good alternative Low Noise JFET
2SK117, 50 volt max - unfortunately i do not know the max current of that one ...
this also have different suffixes
but is not told at
http://www.elfa.se/en/
website


Regards from near to you ( north of polar circle! AC-län )
lineup
http://lineup.awardspace.com/
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Old 5th October 2006, 12:29 PM   #5
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g.pietro!

If I want to use the 2SK170 in a microphone preamp (low level), which one to chose?

Roger
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Old 5th October 2006, 01:49 PM   #6
GIPIONE is offline GIPIONE  Italy
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If you send me the schema I control it and indicate the correct type, I think the GR type.
See this photo by Pass for section and pair the jfet.
Regards
gp
Attached Images
File Type: jpg fet-match.jpg (51.4 KB, 1534 views)
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Old 5th October 2006, 06:13 PM   #7
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g.pietro!

You can find the schematic here: http://user.faktiskt.se/RogerGustavsson/telinga.pdf

It is not tested. A friend is trying to analize the circuit. Input is about 8 mV at maximum. Maybe the gain is to high. A total gain of 50-100 with the SSM2142 (which has a gain of 2), would suit fine.

As the 2SK170GR are the only ones to be found, maybe there is no choice at all.



Arrividerci!

Roger

(have not been to Italy for some time now and I have lost almost all my knowledge of the italian language...)
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Old 6th October 2006, 06:36 AM   #8
GIPIONE is offline GIPIONE  Italy
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IS NO POSSIBLE OPEN

http://user.faktiskt.se/RogerGustavsson/telinga.pdf

I don’t know why………

Regards

Gipi


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Old 6th October 2006, 06:39 AM   #9
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Very weird thing with the file.

I hit this first
http://user.faktiskt.se/RogerGustavsson
got error then hit ENTER once again.

Then I located the file.
telinga.pdf
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Old 6th October 2006, 07:00 AM   #10
Netlist is offline Netlist  Belgium
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You need to copy and paste the link in a new browser.
Works for me.

/Hugo
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