[Open_electroporator] got my package today

Kermit Henson kermitlab at gmail.com
Thu Mar 9 13:37:14 UTC 2017


got mine today :) time to fry some bugs

On 7 March 2017 at 01:56, John Griessen <john at cibolo.com> wrote:

>
>
> On March 6, 2017 11:39:27 AM MST, Nathan McCorkle <nmz787 at gmail.com>
> wrote:
> >I can't tell if the ugly traces is real or not... I'm using cheap
> >(100MHz 'rated') probes
>
> If you connect them to the scope calibrator then adjust to square shape
> the overshoot might go away, but the low pulse is still odd.
>
> >In any case, with the a pretty-looking pulse train being produced (the
> >one I showed last), I hooked up the HV board and plugged in the
> >external power supply. I also placed a 1/4W 33k resistor between the
> >HV contacts. Running the program make for a high-pitch tweet/chirp
> >noise, I'm guessing from the coils briefly heating up and expanding
> >and sending an audible pressure-wave outward.
> >
> >Then I got out my 40kV-rated 1 GOhm resistor, and clipped that to a
> >3rd oscilloscope channel, and found I could see the HV waveform
>
> Good.  Is it like the one I posted?
> Where the HV output builds then plateaus as the train of 8 pulse s goes
> through the the transformer?
>
> >
> >So, John, how do I calculate the voltage division on the 1GOhm
> >resistor?
>
> 1/(1/R1+1/R2)=Total
>
> Please trim replies and separate questions -- I,m using a phone.
>
> John
> -- JG's phone
> _______________________________________________
> open_electroporator mailing list
> open_electroporator at cibolo.us
> https://cibolo.us/mailman/listinfo/open_electroporator
>



-- 
Kermit Henson

O       o O       o O      oO
| O   o | | O   o | | O    o | |
| | o | | | | | | o | | | | | | o | | | |
| | O | | | | | | O | | | | | | O | | |
| o   O | | | o    O | | | o  O | |
o       O o         O o         O
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://cibolo.us/pipermail/open_electroporator/attachments/20170309/7f268373/attachment.html>


More information about the open_electroporator mailing list