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Backlighting

A week or so ago I was passing by our dead computer parts area and saw an LCD monitor. It looked slimmer than the usual monitor and I thought it might be LED back-lit. It was with a row of really bright white LEDs. I'm not sure what the current rating is, so I didn't really press it.

 

This weekend was a lot of learning about stuff (meaning nothing really worked). I got my schlieren set-up running using my old flash controller but didn't get any good pictures. I am hoping I will have better control of the delay than the CameraAxe.

 

I also got a rewritten piece of software for the Axe (thanks Maurice) that allowed closer control of the delay. But for some reason, the Axe stopped working when I tried to upload the software. Who knows why. I'll have to decide if it's worth while to get another...

 

I also experiment with using a neon sign transformer to charge up my capacitor for setting off larger firecrackers. It worked fine. For some reason it's really hard to find a fixed power supply that puts out 5kV. I bough ta unit that runs at 6kV hoping that I could use it with a Variac to run at 5kV, but no dice. It seems like 5kV is a orphan voltage on Ebay.

 

I also tried charging up a very large capacitor bank at 1.2kV and found out that it will require some work. At 30mA it takes forever to charge the bank. And discharging the bank (even at 500 volts will take a higher wattage resistor than I have sitting around. It's part of a side project to try and get a ruby laser up and running. I've always wanted to drill a hole in a razor blade.

 

Warm and humid today. We had a fairly decent amount of very rare summer rain. Went on a hike in the Westlake area with Ian and Monty. Lots of bugs crawling around plus we saw three tarantula hawks.

 

Cheers.

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Uploaded on August 4, 2014
Taken on August 3, 2014