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#1 |
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diyAudio Member
Join Date: Nov 2004
Location: Chain o' Lakes
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I'm looking at building a Borbely All Fet super shunt regulator. This calls for the 2SK389 and 2SJ109 dual jfets.
These are difficult to source from reliable sources and relatively expensive, so much so that they are more expensive than the transformer is priced at. I'm aware you can use matched 2SK170/2SJ74 in place of the duals. I'm looking for the data sheets or pin outs of the 2SK389 and 2SJ109 to see how the k170/J74s would be connected in circuit. Any help/info would be greatly appreciated.
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"Some lures are designed to catch fish, others are designed to catch fisherman." |
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#2 |
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diyAudio Member
Join Date: Oct 2008
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Google works just fine...
- But if you're realle lazy, then just remember that they should be facing opposite direction and you should allways be able to see the text on the one at your left... Last edited by Dansk; 15th September 2010 at 11:50 PM. |
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#3 | |
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diyAudio Member
Join Date: Nov 2004
Location: Chain o' Lakes
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Quote:
I've googled and searched for them here before posting , came up with nothing regarding actual data sheets. I thought someone here might have them handy.
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"Some lures are designed to catch fish, others are designed to catch fisherman." Last edited by hags; 16th September 2010 at 12:16 AM. |
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#4 |
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diyAudio Member
Join Date: Aug 2002
Location: Toronto, Canada
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http://140.120.11.1/prophys/ael/File...eet/2sj109.pdf
http://jm.plantefeve.pagesperso-orange.fr/2SK389.pdf
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We are fearless amplifier builders. A little heat doesn't scare us at all. - NP 2002 |
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#5 |
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diyAudio Member
Join Date: Nov 2004
Location: Chain o' Lakes
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Dennis, awesome!! Thanks!
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"Some lures are designed to catch fish, others are designed to catch fisherman." |
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| Thread | Thread Starter | Forum | Replies | Last Post |
| 2sk389 and 2sj109 -where | sparkle | Parts | 8 | 3rd July 2009 10:03 PM |
| What are we going to do with all these 2SK389 and 2SJ109? | stoolpigeon | Solid State | 8 | 28th November 2007 10:13 AM |
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