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Old 21st January 2013, 10:33 PM   #31
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-yup - with much less power
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-hardly , without too much compromises .......
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Old 21st January 2013, 11:13 PM   #32
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That's a shame. So there arn't cheaper JFETs with a similar spec available?
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Old 21st January 2013, 11:42 PM   #33
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Aargh, so late to the party, I'm a goner.

(And my Soul, from out that Shadow, that lies Floating on the Floor, shall be lifted Never more)
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Old 21st January 2013, 11:49 PM   #34
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Quote:
Originally Posted by portreathbeach View Post
That's a shame. So there arn't cheaper JFETs with a similar spec available?
There are still suitable parts out there, mostly switches with high
transconductance and high Idss. You might have to degenerate them more
with higher Source resistances, but it's do-able.

I have a few rolls of Fairchild J112's and P1086's that I'm certain would work,
and you can be sure there are others.

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Old 22nd January 2013, 01:04 AM   #35
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Have we been thrown a bone her. I am drooling and i dont know why. Did somebody ring a bell?
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Old 22nd January 2013, 04:21 AM   #36
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According to Mouser, P1086 is End of Life :

P1086 JFET | Mouser


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Old 22nd January 2013, 04:26 AM   #37
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One can of course use 2SK246BL / 2SJ103 Y or GR.
They are unfortunately also EOL.
And for the same output impedance (or total effective transconductance), you would need 5000 FETs per channel ?




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Old 22nd January 2013, 12:12 PM   #38
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isn't it very good news that LSJ74 is anounced to come out this year?
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Old 22nd January 2013, 12:15 PM   #39
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Which year? It gives a good picture of economy of scale. We sit here thinking that they would have all the business they need, but to them, it is a market that holds no promise. Unfortunately, the audio world is the only one looking for these parts.
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Old 22nd January 2013, 12:21 PM   #40
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this year(2013) they said
and they know it very well the fets are maked as audio fets. maybe papa gave them a tip about this beast

Last edited by AudioSan; 22nd January 2013 at 12:23 PM.
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