The MOSFETs I intend to use for the regulators are 2SK3497 / 2SJ618.
Low dropout and low Zout, +ve tempco, ideal for the purpose.
I just checked at Toshiba and they have been categorised as "Not recommended for New Design".
Not yet end of line, but maybe we should also organise a GB before long.
Available at bargain prices from Digikey, but rather long delivery, I was told.
If someone would organise GB and match (we should really, even though to 0.2V and not 20mV), I shall take 20 each.
You can also try them in place of 2SK1530 / 2SJ201 in the F5 / F5X.
If you want to simulate, I have the Spice models.
Patrick
Low dropout and low Zout, +ve tempco, ideal for the purpose.
I just checked at Toshiba and they have been categorised as "Not recommended for New Design".
Not yet end of line, but maybe we should also organise a GB before long.
Available at bargain prices from Digikey, but rather long delivery, I was told.
If someone would organise GB and match (we should really, even though to 0.2V and not 20mV), I shall take 20 each.
You can also try them in place of 2SK1530 / 2SJ201 in the F5 / F5X.
If you want to simulate, I have the Spice models.
Patrick
You already have tons of work still lined up. So do I.
Someone else could organise this one ....
If we cannot get them we can still use 2SK1530/2SJ201 for the regulators.
But these are really End of Line, and are also much more expensive.
We'll have regulators, one way or another. 😉
Patrick
.
Someone else could organise this one ....
If we cannot get them we can still use 2SK1530/2SJ201 for the regulators.
But these are really End of Line, and are also much more expensive.
We'll have regulators, one way or another. 😉
Patrick
.
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http://www.diyaudio.com/forums/vend...shiba-2sk1530-2sj201-16-pair.html#post2193828
but - I'll not use them for amplifying purposes ......
naah - I meant on 2SK3497 / 2SJ618 ( they're buried on linked page ) .......
even if maybe better than plain IRFPs for amplification , they look as sorta rough
even for investment purposes
I knew Zhou has them on order, but he has no time to match these days.
> even if maybe better than plain IRFPs for amplification , they look as sorta rough
That means you have not tried them.
I have not either, but I know people who has. 😀
Patrick
> even if maybe better than plain IRFPs for amplification , they look as sorta rough
That means you have not tried them.
I have not either, but I know people who has. 😀
Patrick
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This is one information source on those FETs here in DIYA :
http://www.diyaudio.com/forums/soli...er-mosfets-2sk3497-2sj618-little-testing.html
Here is another one :
http://www.diyaudio.com/forums/soli...l-interview-bjt-vs-mosfet-61.html#post2158768
but not what I was referring to above.
Patrick
http://www.diyaudio.com/forums/soli...er-mosfets-2sk3497-2sj618-little-testing.html
Here is another one :
http://www.diyaudio.com/forums/soli...l-interview-bjt-vs-mosfet-61.html#post2158768
but not what I was referring to above.
Patrick
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2SJ618/2SK3497?????????????
’m�l‚Ì‚„‚³‚ñ‚Ɉ˗Š‚³‚ꂽƒgƒ‰ƒ“ƒWƒXƒ^ƒAƒ“ƒv‚Å‚·
Keep you fishing for a while, choky !!
Patrick
’m�l‚Ì‚„‚³‚ñ‚Ɉ˗Š‚³‚ꂽƒgƒ‰ƒ“ƒWƒXƒ^ƒAƒ“ƒv‚Å‚·
Keep you fishing for a while, choky !!
Patrick
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Correct, I would happily send a couple of hundred to anyone who wanted to match them and collect a dollar or two for DIYA
Seems everyone has special wishes and only 4 people so far are willing to do real work.
Patrick
Patrick
Patrick - tnx for links ;
I knew them already ( fishing and googlin' is my fave sport , right after cycling and MotoGP) ........
but - I still can't see how they can be good enough for (X)F5 ?
I knew them already ( fishing and googlin' is my fave sport , right after cycling and MotoGP) ........
but - I still can't see how they can be good enough for (X)F5 ?
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