How to deal with old trigerred strobes on a pearl?

Questions or discussions about the Titan and classic consoles and software.

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Mystic
Posts: 31
Joined: 23 Jan 2005, 22:16

How to deal with old trigerred strobes on a pearl?

Postby Mystic » 07 Apr 2005, 17:27

Ihave a little question, about old strobes and how to drive them from a Avo Pearl 2000. I have two old Collyns 1500 strobes that can be driven by 0/10V input, however the input is some kind of trigger, so whenever the voltage changes on this line the strobe will trigger *once* and flash *once*. I drive this analog line with DMX through a common demux from a pearl.

So if i take this fixture as a dimmer channel if I flash the channel, the strobe will flash once. If i want to have a stroboscope effect (with many flashes per second) I can program a very very fast chase to do this (on, off, on , off), however it is not really practical for me because i cannot easily controll the speed of the chase.

I also have two strobes, sometimes i'd like to make a burst on one and then on the other (like a burst chase) and programing this with the previous solution is a pain, it is also very difficult to synchronise this wiht tap tempo because my chase has many steps where i would like to have just two (burst one and two).

So here is my question : Is there a magic fixture type that could allow me to program this easily and generate the flashes at a predetermined rate ? or is there any other mean to make my life easier with this old trigerred strobe ?


ps: sorry to be a bit lengthy but i wanted to be as clear as possible.
CoenCo
Posts: 120
Joined: 06 Feb 2005, 20:55

Postby CoenCo » 07 Apr 2005, 20:51

Maybe you could use a normal dimmerchannel, but with a custom usercurve.
The curve determines what level in the desk corresponds to which DMX-level.
You could make the curve so that every next% swaps the DMX-level from 0-100-0-100%
I don't know if that'll help your cause, but you could try it. fading from 0-100% would mean about 128 flashes in that case.

Also the shape-generator is your friend. You could create your own shapefile that accomplishes the bursts you require.

I hope this helps

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