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Hey.
If we look at post #35+#36, i would like to know, what the meaning was with R8 trimpot. ? -I am in no doubt that it could be left out as ZM say's, but i sure would like to know, what it does excatly ?
Jesper.
Thanks pal 🙂
Didiet, is it possible to avoid running the trace between the legs of C3 ?
It's because it is a bit tricky, when doing the pcb by "hand"!
Also i did f**k up, when i meassured my distance between the mounting holes of the mosfets... The right distance is 180mm.
... Sorry, i was to fast...
Can you correct this?
Jesper.
Didiet, is it possible to avoid running the trace between the legs of C3 ?
It's because it is a bit tricky, when doing the pcb by "hand"!
Also i did f**k up, when i meassured my distance between the mounting holes of the mosfets... The right distance is 180mm.
... Sorry, i was to fast...Can you correct this?
Jesper.
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Hello didiet 🙂
Glad you help, and are willing to correct pcb, for my build.
I just found another thing. -If you look carefully at the 2sj74, trace are running through legs there 🙂... Can you avoid that too?
Also i got some 2sj109V, i would like to use instead of 2pcs. 2sj74 (I actually used 2sj109V in my original AlephJ build, and they are working (2sj109 are 10-20mA chips)... The footprint of 2sj109, are capable of holding 2pcs. 2sj74 if legs are bend a little for making them face eachother.
Can you make footprint for 2sj109V ???
Regards and good day here; Jesper.
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Hi. and thanks again didiet... cool job you did!
So i have collected all here, in this post.
ZM is there any consideration, if i use 2sj109V (10-20mA), or should i just try the values allready posted in this schematic attached here.
I will try to make the PCB at the end of the week. Maybee stuffing it up next week? Making it a proto, but neat in case everything is working and stable! -I think for me it's easier than doing a proto on a veroboard or like.
Jesper.
So i have collected all here, in this post.
ZM is there any consideration, if i use 2sj109V (10-20mA), or should i just try the values allready posted in this schematic attached here.
I will try to make the PCB at the end of the week. Maybee stuffing it up next week? Making it a proto, but neat in case everything is working and stable! -I think for me it's easier than doing a proto on a veroboard or like.
Jesper.
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you're good with 2SJ109V , it's biased with CCS , so higher Idss really is not important
values are good
values are good
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