[Open_electroporator] pyflex_f401 v0.6 prototype pcb assembly

[Nathan McCorkle]

I just installed pcb-rnd, had to compile it first since my version of
ubuntu doesn't have a package... it was pretty fast, maybe 2 minutes.

Opening the kvboard.lht... I find that the interface is much less intuitive
than kicad, so I am not really able to determine any errors there due to my
unfamiliarity.

onto kvboard.sch, I wonder why there are two stages of transistors, i.e.
U1/U4/U5 (I know these are alternatives to each other) and Q1/Q11/Q21 (also
noted these are alternates to each other), even though the 18V is already
present after the first stage? Is it because the first stage charges up
slowly due to the greater gate/base to source/collector difference, so the
second stage acts to more-quickly 'flash' the voltage onto the coil? Making
the rise time faster?

I will look into the other files more in a bit, gotta get off the computer
for now.

On Sat, Jun 30, 2018 at 11:43 AM John Griessen <john at cibolo.com> wrote:

> I'm keeping my head down doing assembly, so if anyone takes time and looks
> over
> the docs of schematics and assembly drawings such as:
>
> kvboard.assy+bom.odt kvboard.bom.tsv kvboard.sch
> pyflex_f401_all.assy+bom.odt pyflex_f401_all.bom.tsv
> pyflex_f401_bom_large_font.odt pyflex_f401_v0.6_assy.png
>
> I'd like to hear about errors or omissions.
>
> Thanks,
> --
> John
> _______________________________________________
> open_electroporator mailing list
> open_electroporator at cibolo.us
> https://cibolo.us/mailman/listinfo/open_electroporator
>


-- 
-Nathan
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