I build mine on the fly and have not formally penned all my thoughts and
other embellishments of this circuit. Any SCR with PEAK current of at
least 600 amps should work. Generally a 20 amp continuous with the
appropriate peak rating will do. I will have to draw up cct in due course.
In your case 940uf cap will require at least 1000 amps peak.
Nearly all professional devices use SCRs I have not seen any ccts on the
net hence my own design. I can tell you it is far better than the ones I
built using the flash method. Also I found using caps in parallel reduces
internal resistance and hence provides much quicker and higher energy pulse.
If you do make the circuit I would love to hear how it turned out.
Chris Gupta
At 01:30 PM 2/25/99 -0500, you wrote:
>I saw your post on a keelynet archive. I am
>building a photoflash based mag pulser 600v/940uf
>(Beck type). I see from your post that you are
>using an SCR in your design. Is the SCR superior
>to a xenon tube type of switch? Where can I find
>more info on your work and others using SCR's?
>
>Dennis Lipter
>