Happy to post them. I have not had this Gerber fabricated or tested so look it over, if something needs to be changed then let me know.
Here is the P channel V-FET board. Again same disclaimers...not tested, fabricated. Let me know any changes/problems. I added a pad in the Drain routing of the MOSFET so possibly other types of mosfet packages may work. At least I think...
Since I found some 2SJ18 in my stash I didn't know I had, I found this board created by @tom1066. I had it made up at jlcpcb.
There are a few notes to those who want to try it.
First, it works!
Second, the pads on the top of the board will short out to any conductive heatsink. So I used an extra mica pad here and mounted accordingly.
The caps are a bit small, so have to be careful of parts ordered, and the holes for the pot are a bit more stretched out so have to bend legs and suspend the pot above the board. The FETS and Souce resistor should ideally have a little more room here to breath, and they sit at the edge on my angle aluminum, and the other parts are pretty close. But beggars cannot be choosers. Unless Papa releases the gerbers for his, this is a working alternative.
There are a few notes to those who want to try it.
First, it works!
Second, the pads on the top of the board will short out to any conductive heatsink. So I used an extra mica pad here and mounted accordingly.
The caps are a bit small, so have to be careful of parts ordered, and the holes for the pot are a bit more stretched out so have to bend legs and suspend the pot above the board. The FETS and Souce resistor should ideally have a little more room here to breath, and they sit at the edge on my angle aluminum, and the other parts are pretty close. But beggars cannot be choosers. Unless Papa releases the gerbers for his, this is a working alternative.
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Ah, I understand, the Gerber assigns a hole with a pass-through to the other side. Just having a hole would have been the right thing, with an elaborate surrounding.
--> Well, one can cut out those 4 round drain pads on that side with a sharp one (not a sharpie).
And it is easy to drill a second hole for the - of the big capacitor. A beggar needs to twist reality . . .
I also have some N-channel fets around looking for a use-case.
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Can somebody please help me find 1pcs 2sk60?
Thank you and best regards.
Thank you and best regards.
I have a pair of the 2sj28 devices does the K33 after the part # refer
to the pinch off voltage ?
to the pinch off voltage ?
It doesn't look as though that is going to happen, but it shouldn't be too much effort to amend the @tom1066 PCB layout if the design files were made available?
You can buy aluminum angles or tees from metal stores.
Here is one store, and they have a location in Los Angeles: https://www.onlinemetals.com/en/buy/aluminum
They have angles and Bar-T-Bar(tees). Choose 0.25" thick and size and length of your choice, and 6063 grade. 6063 grade is softer so easier to drill.
Then drill to suit. A drill press is not necessary. I have drilled many holes in aluminum with a hand held drill.
Here is one store, and they have a location in Los Angeles: https://www.onlinemetals.com/en/buy/aluminum
They have angles and Bar-T-Bar(tees). Choose 0.25" thick and size and length of your choice, and 6063 grade. 6063 grade is softer so easier to drill.
Then drill to suit. A drill press is not necessary. I have drilled many holes in aluminum with a hand held drill.
If you don’t want to work the aluminum (though Ben’s recommendation is best),
Order some of these. Run flying leads if needed.
Order some of these. Run flying leads if needed.
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