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by Jim Z
Fri Aug 11, 2006 2:00 am
Forum: Other Warning Systems - Indoor, Outdoor and Vehicular
Topic: Ambulances with LED Lights
Replies: 34
Views: 36890

Let's see: LEDs last much longer, they draw less current, and the colors are very intense couple other things- 1) is that you can overdrive them somewhat with proper heatsinking and a short duty cycle. I've been able to hammer the crap out of "white" LEDs with drive voltages above their r...
by Jim Z
Fri Aug 11, 2006 1:53 am
Forum: Other Warning Systems - Indoor, Outdoor and Vehicular
Topic: sometimes, my job is actually interesting
Replies: 3
Views: 6645

sometimes, my job is actually interesting

'cos today I was tasked with carrying out sound pressure measurements on a couple of these. first time I've actually held a siren of any substantial size in my hands. Loud SOBs, that's for sure :twisted:
by Jim Z
Mon Aug 07, 2006 3:05 am
Forum: Main Outdoor Warning Sirens Board
Topic: Real Nice Storm Video with 2001 Footage
Replies: 9
Views: 7328

thank you :) that's it.
by Jim Z
Mon Aug 07, 2006 2:36 am
Forum: Main Outdoor Warning Sirens Board
Topic: Real Nice Storm Video with 2001 Footage
Replies: 9
Views: 7328

Any luck?
by Jim Z
Tue Aug 01, 2006 1:05 am
Forum: Main Outdoor Warning Sirens Board
Topic: Real Nice Storm Video with 2001 Footage
Replies: 9
Views: 7328

does anyone still have a link to the video someone posted on the old board where there's a bunch of people standing on the balcony of their apartment watching the storm roll in? (real specific, I know...) bunch of 2001s sounding off in the distance. I can't remember if it was on youtube or Google Vi...

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