[Open_electroporator] Culture Shock yardboard testing

[Nathan McCorkle]

On Sun, Jun 26, 2016 at 7:21 PM, John Griessen <john at industromatic.com> wrote:
> I did not get total satisfaction today.  An hour ago I was still trying to
> use the lame micropython docs to flash
> a non pyboard platform

Hmm, is this a problem with the ST  Nucleo F401RE? Heh heh, I just
ordered one of those. I am  thinking you probably would have been up
and running if you'd had an Arduino around. You should get a few of
those $3 dollar units, and maybe one of the $6-9 'mega' boards too.
They are handy to have a stock of for random stuff. Easy to get up and
running quickly with a few clicks. Not suggesting for a product, but
definitely a handy pretty-much consumable tool that can definitely
serve a useful purpose once in a while.

> without the help of the forum users who are all quiet
> on the weekends.  So I switched to
> thinking about the transformer specifying and not ready with studies on that
> either.  So I just sent my stuff to Mr Zhou,
> who has said before, "We have many engineers who has experience in high
> frequency transformer for many years.If you need our help.Pls feel free to
> contact us."
>
> I sent him what you all have seen here plus a redone schematic that shows
> the output clamp diodes, capacitors with values,
> so their engineers can interpret the scope waveforms from fact instead of my
> newbie interpretations/scientific-wild-assed-guesses.

Hmm, are disposable cameras still being produced? I wonder if those
transformers could be useful, or a microwave? It almost seems at this
point like you're building a DC-DC converter, but not using a boost
topology. I checked a few days ago and it seems car ignition coils are
100 turns ratio. I just googled 'diy high current pulse' and got this
link which uses car ignition coils... way bigger than what we want and
way higher duty-cycle for sure:
http://www.rmcybernetics.com/projects/DIY_Devices/homemade_power_pulse_generator.htm

Maybe it can help, or not...  maybe send that site an email if you can
find an address?

-- 
-Nathan