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 ......
Investment 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
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?????????????
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Keep you fishing for a while, choky !!
Patrick
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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
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