High speed strobe schematic query

"Scott Coutts"

** That site shows the bare bones of a LOW speed strobe with a shorter flash duration than a photo flash. ** Then keep away - it is a highy dangerous device and way out of your league.

An automotive timing light might serve your purpose better anyhow.

............. Phil

It is a high speed strobe in comparison to a standard camera strobe and, as I stated earlier, that is what I need. You're talking semantics. I need a strobe with a flash duration of, ideally, less than 20 microseconds.

I was waiting for that. I'm not so ignorant that I'd cause any damage to myself with it, despite what you might think.

I've never seen or used one of those before. How bright are they and what is the flash duration on those? I need it to flash when manually triggered, and flash only once.

Scott.

** Camera do not use strobes - they have flash guns. ** No - you do not know what a strobe is.

A "strobe" flashes continuously - usually at a rate of many times per second.

** What I think is what matters most to me.

What you just posted tells me you are not competent with high voltage circuitry.

** Go to an automotive parts place and have a look at one.

It may need modifying to produce single flashes on cue.

But all the hard work is is done for you.

.......... Phil

** That explains all those discussions you have with yourself.

......... Phil

"Scott Coutts" ...

** I have the answer - a small camera flash can be modified to produce vastly shorter flashes - just remove the main storage cap and replace it with a much smaller value.

A 3.3 uF, 400 volt plastic film cap would be ideal and about the same size as the original circa 150 uF electro.

See the WES catalogue for their "Solen " polyprops.

Eg, cat: SCR 3.3

.......... Phil

Yes, but in the photography industry, 'flash guns' are often called heads, strobes, blocks, monolights, etc.

I do in fact know what a strobe is. The term can be used differently depending on your field. My comment regarding semantics was made on the assumption that you were not being quite so pedantic as I had expected.

I am aware that that is one of the uses of the term and, yes, perhaps I should have chosen a different term to describe the light when discussing it in an electronics group.

um... ok. I certainly dont doubt that.

There is no question that I am not familiar with high voltage circuitry. I stated that from the outset. That doesnt mean that I am sufficiently ignorant or incompetent that I will hurt myself with it.

I doubt they will specify the flash duration, but I'll have a look anyway.

So they dont use high-voltage to trigger the xenon tube?

Anyone else have something useful to say?

Scott.

** Industry jargon should be left where you found it. ** Then why ask for a "strobe" when you wanted single fashes?? ** We are not pro photographers here. ** Make less assumptions.

Then you will not look such a fool.

** Correct - industry jargon is not for export. ** That is your very silly opinion. ** Now you have graduated to being an outright smatarse.

Bye.......

.......... Phil

What kind of camera are you using? film or a digital?. Leds can run at fairly high speeds for the non white types which have a phosphor which would likely be slower to fade back to darkness, but you'd have to check on that.

It may be possible in your application to have an array of high brightness LEDs (or a couple of 5 Watt units) driven by a simple 555 oscillator circuit set up to have a short duty cycle.

A quick Google shows this mob make a unit good for 1uSec pulses:

You'll have to excuse Phil as it's a full moon after all.

Regards Mark

"Scott Coutts"

** One of these will do the trick:

1/45,000 of a second is 22 microseconds !!!!!!!!!!

This is one of the **cheapest** flash units on sale in Australia.

I bought one similar 25 years ago.

Some big time pro-photographer you are - d*****ad.

........ Phil

Are you wishing or hoping?

Here we go again. Yet another one.

Yeah, I think every group has one. Now I know what he is, I'll just leave him alone. Thanks for the info.

Cheers,

Scott.

"Scott Coutts"

** Harris is a complete f****it and a troll.

You are not in his league - f*****ad.

........ Phil

"Scott Coutts"

** Typical, know nothing, arrogant Uni student PUKE !!!

** How many giant kicks in the arse would you like - Scott ??

Or maybe you are a gay boy, uni f****it ???

......... Phil

From the OED:

"Strobe: A. adj., an electric light that can be made to flash on and off rapidly and automatically; also, an electronic flash for a camera"

See above, or to refresh your memory:

From the OED:

"Strobe: A. adj., an electric light that can be made to flash on and off rapidly and automatically; also (U.S.), an electronic flash for a camera"

That does not change the fact that the term 'strobe' has more than one definition.

By having a quick look at your posting history, I think it is you that is still appearing as the fool, after all this time.

See the above definition once again.

I stated no opinion.

I asked you a serious question. First you tell me not to deal with devices such as these, and then you tell me to modify a device which also contains a xenon tube. Make a decision.

... or dont. I've become tired of you now that I realise what you are. I won't bother replying to anything more you write, so if you are petty enough to require the last word, as most of your kind do, you can have it.

Why gee... thanks Phil, coming from you that's quite a compliment!.

Regards Mark Harriss

Phil, you still got this thing for gay boys? You seem to resurrect it periodically.....

Aren't you a bit too old for this sort of thing?

A bit of a hangover from your "skool" days perhaps?

"Alan Rutlidge"

** Scott may just be looking for a really stoopid, aging gay d*****ad to rip off his credit card and savings account to the shithouse. Just like " Phouc Yu " did to YOU - Alan Rutlidge - in 1997.

Shall I supply him your phone number and address ???

............. Phil