> I interpreted that 750V figure in the datasheet as the maximum voltage fo=
r the main discharge,
> not the trigger pulse. I think the trigger pulse is in the range of about=
 10 to 20kV, maybe even more.

Oh, I agree. The electronic flash guns for photographic use had somewhere b=
etween 350 and 500V on the main capacitor. Commercial ones were always 500V=
, with the best ones having 4 500uF capacitors that could be switched out t=
o give half and quarter power by using two or one capacitor. The inverter w=
ould recharge 2000uF in under 10 seconds after a flash. Would take a bit lo=
nger, probably around 15 seconds from a cold start with 0V on the caps. The=
se used a separate trigger transformer to drive the trigger electrode which=
 was a metallic paint stripe on the outside of the tube for some models, ot=
hers had what looked like a metal clamp on the outside of the tube at the g=
round end as I recall it. The energy in getting a handful of atoms ionised =
at that point was enough to make the whole tube ionise.


> This sounds like it is a transformer with voltage multiplier on the=20
> secondary, rather like a TV EHT output stage, but looking at the data=20
> sheet you referenced in your first post it lists 750V maximum, so I=20
> suspect it may be only a single or two stage rectifier. They tend to=20
> pot these beasts to keep moisture out of the high voltage area as much=20
> as possible and eliminate corona.
>
>
>
>
--
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/chang=
e your membership options at http://mailman.mit.edu/mailman/listinfo/piclis=
t

--=20
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.