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The next best thing to 2SK389 / 2SJ109 ?
The next best thing to 2SK389 / 2SJ109 ?
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Old 21st March 2009, 12:53 AM   #61
miklos is offline miklos  Hungary
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I'll try to sketch the jig & resistor schematic and post later.
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When?
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Old 21st March 2009, 07:20 AM   #62
Lumba Ogir is offline Lumba Ogir  Sweden
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Hannes,
the possibilities of reducing distortion by matching are strongly limited so don`t expect much. The benefit of matching depends on topology, biasing and operational conditions. As you don`t have any control over most parameters, die design and manufacturing quality generally is more important. There is so much to do about distortions caused by other mechanisms, you should concentrate on that part instead.
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Old 21st March 2009, 03:06 PM   #63
h_a is offline h_a  Europe
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Jeez, Lumba you really missed all the fun?

I posted already 2 parts on jfet matching and distortion:

Part 1 - Common Source

Part 2 - LTP

I hope to find time to do part 3 - complementary circuits!

Have fun, Hannes
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Old 12th November 2009, 05:15 PM   #64
les_garten is offline les_garten  United States
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Hello,
I'm looking for about 12 of these heatsinks. I'm in the US. I talked with Lucdunhil but it doesn't look like he has anymore. Anybody got some of these left?

Les
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Old 12th November 2009, 07:30 PM   #65
EUVL is offline EUVL  Europe
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Contact Mark at the GB thread :

Toshiba Dual JFET Heatsink

He will sort you out.
There is a handling charge for orders below 25 pieces.


Patrick
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Old 14th June 2010, 04:32 PM   #66
ace7one is offline ace7one  Norway
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I would like some of these heatsinks. Where did you get them? Is there another groupbuy going?
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Old 15th June 2010, 09:25 AM   #67
EUVL is offline EUVL  Europe
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Just go to the last page of the Group Buy thread and contact MarkLai directly.
We have different versions in stock.
Please read through the last 3 or 4 pages.


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Patrick
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