BF862 version
Here is a BF862 version set with corrected small holes for home etching.
I also attach the jpeg ones for reference.
Cheers,
Valery
Here is a BF862 version set with corrected small holes for home etching.
I also attach the jpeg ones for reference.
Cheers,
Valery
Attachments
Yes, very nice Valery. I have lots of 2sk170's - could those be substituted for the BF's with some drilled holes and bigger pads?
Hi X, just use the version from post #181 above, designed initially for 2SK117 - the holes are already there. 2SK170 will work fine there.
Thanks Valery - missed that. 🙂
I am new at home made PCBs here but I think if using iron on transfer method for mask I want the image of the bottom not in mirror image. So I will manually mirror when printing PDF. The way I see it, we want the laserprint image to appear just like we want to view it on the back side of the board. Do I have this right?
I am new at home made PCBs here but I think if using iron on transfer method for mask I want the image of the bottom not in mirror image. So I will manually mirror when printing PDF. The way I see it, we want the laserprint image to appear just like we want to view it on the back side of the board. Do I have this right?
You have that backwards. You want to glue a mirror image to the copper so when you peel the backing paper correct orientation will remain.
No. Any image you transfer will read backwards because it reverses when you iron it down. If you can read the print it won't transfer properly.
Man, l pulled a rookie mistake. I etched a pair of boards and had them 90% drilled when I realized the pins on the TO220's were too close together. Came back and checked and saw that I had the print set to fit to margins. Doh, I wasted two boards, etch solution and about two hours of my day. 
Deep breath Terry.
Deep breath Terry.
Man, l pulled a rookie mistake. I etched a pair of boards and had them 90% drilled when I realized the pins on the TO220's were too close together. Came back and checked and saw that I had the print set to fit to margins. Doh, I wasted two boards, etch solution and about two hours of my day.
Deep breath Terry.
I'm glad I didn't put any money on a time in the pool!
Yeah and now my iron is on the blink. Looks like it will be few day now. Going to be busy for the next few day due to Thanksgiving Day.
Sorry guys
Sorry guys
Valery:Thank you very much- quick done layout- wow!
I will take it to learn arrange parts and routing in Eagle- if allowed?
Next steps to complied with Mask and Prints is more difficult to learn at moment.
Terry:Oh that's bad, i was inquisitively to first build results or short impression.
Wish you and others a nice Thanksgiving.
Regards.
I will take it to learn arrange parts and routing in Eagle- if allowed?
Next steps to complied with Mask and Prints is more difficult to learn at moment.
Terry:Oh that's bad, i was inquisitively to first build results or short impression.
Wish you and others a nice Thanksgiving.
Regards.
Bangla - no problem, cool - please share your results 😉
Terry - I'm also surprised what kind of simple mistakes I make from time to time 😛
Jeff - thank you for reminding about the smaller holes
Nice Thanksgiving to everyone!
Cheers,
Valery
Terry - I'm also surprised what kind of simple mistakes I make from time to time 😛
Jeff - thank you for reminding about the smaller holes
Nice Thanksgiving to everyone!
Cheers,
Valery
Thimios, very high-quality etching, by the way. Even a thin line on the logo triangle looks good!
<<Thimios, very high-quality etching, by the way. Even a thin line on the logo triangle looks good! >>Which is very cool already!😀
Photoresist method.😉
Thanks Valery,now i will try seeing how many parts are available😕
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Wow)) That means we can slightly scale-down the board if we see it doesn't fit the chassis or a heatsink.
Never thought about it that way 🙂