> A quick parametric search at Digikey turns up more than SIXTY
> part number of 300/350/400V output transistor output opto-isolators,
> all in stock

Spehro, Digikey have representation in New Zealand, as do many other
companies like them. Looking at the search results for H11D1 they have
many variants, and at reasonable prices. The problem is that it appears
MOQ is a tube. For 6-pin DIP that's quite a few. If Digikey is like Farnell
for example, they have no physical presence in NZ to trot along to for
ones and twos

I've decided to not mess about with making a HV opto and just follow
the original circuit. Active Components here can get me 1-up at an OK
price ($1.50, approx Digikey bulk price) so I'll add 10 to an order

One implementation I'm thinking of is a bank of strobes triggered in
a circular sequence. As each strobe's capacitor has more time to
accumulate charge this should be a way of increasing flash rate whilst
retaining brightness

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