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JFET matching Jig
JFET matching Jig
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View Poll Results: 2Oz copper & dedicated jumper
2oZ copper 15 100.00%
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Multiple Choice Poll. Voters: 15. You may not vote on this poll

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Old 3rd April 2018, 11:10 AM   #311
Blk Dynamite is offline Blk Dynamite  United States
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Join Date: Dec 2016
I’ll take one
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Old 3rd April 2018, 11:59 AM   #312
kannan_s is offline kannan_s  United States
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will take one
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Old 3rd April 2018, 01:01 PM   #313
pcgab is offline pcgab  United States
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Join Date: Dec 2014
Location: San Marcos, Texas
JFET matching Jig
I would like one, please.
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Old 3rd April 2018, 03:59 PM   #314
kinku is offline kinku  United States
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Join Date: Feb 2013
Location: Maryland,USA
JFET matching Jig
I would say it is better to get parts you needed yourself than a kit. There are few options with this board and not all needs all of them.
For example it can measure and match Idss and Vgs of 2sK389 and J109 dual Jfets ( 2-10M1A)which are much more expensive than board itself and donít know how many actually will use it for matching.
There is a trimpot that can use and trace id at different Rd points to do a better match.
I used the space to fill up with all bells and whistles. But you may not need them.
But I am ordering some parts if anyone wants let me know to save some shipping cost.
Send me a PM with what you need ASAP so I can accommodate.
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Old 3rd April 2018, 04:35 PM   #315
reaper996 is offline reaper996  United States
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Location: Idaho
PM sent
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Old 4th April 2018, 11:20 PM   #316
kinku is offline kinku  United States
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Join Date: Feb 2013
Location: Maryland,USA
JFET matching Jig
Well I have to order another set. Defective PCB so not planning to ship to anyone.
Will have another batch next week or so.
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Old 5th April 2018, 03:53 PM   #317
kinku is offline kinku  United States
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Join Date: Feb 2013
Location: Maryland,USA
JFET matching Jig
here is the new board. Less clutter is better and has special sockets for through hole JFETS as many asked from last design .
Individual sockets are difficult to handle and work with( sorry last one was mainly made for smd matching).
This will be V2 jfet matcher. This can match some dual jfets for Idss,Id and Vgs-off (Vp) as well as single through hole and smd as before.
Board size 10x6 cm so not small.


The last board smd pads were too close and when I wet them with solder made contact with each other.
Attached Images
File Type: png JFET TESTER.png (113.3 KB, 112 views)

Last edited by kinku; 5th April 2018 at 03:55 PM.
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