XR-71 here I come!
Well I finally did it! I bought the parts to make my first metal detector; Eugene52's XR-71 from his parts list and schematics.
You may have read my post about being electronically challenged and that I'm really only smart enough to write the emails and maybe solder? Well I can now proudly add PCB making to that long list of accomplishments!
It's not quite finished yet, my buddy (the brains of the operation) says to use a tinning product on the copper traces to prevent oxidation; once that's done I'll post a pic so you guys can heap praise upon me. lol (or any constructive criticism) (I'll accept any prayers also for what I'm about to try and do)
Question? Do I need to find a metal project box or will a plastic box do? My buddy seems concerned about EMI (electro-magnetic interference) because we intend to attach our DP/XR-71's to our ATV's and drag the coil behind us (in hopes of finding those elusive space rocks)
We just had one explode overhead last November! Lit up the sky like a thousand welders! Actually more! As I remember this thing was measured in terawatts, which is like the US power consumption in just seconds. I've seen transformers blow before but this was by far the brightest night light I've ever seen.
I looked towards the city expecting to see a mushroom cloud!!! LOL
It was one of those things that made me jump out of my seat literally, and blast out the back door for a better look!
And here's the best part? Some reports suggested that it fell right smack dab in the area we were hunting in last summer!
Personally I'm skeptical about the trajectory, but if I find anything out there, you guys will know about it.
You can still see some good video clips at;
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http://spaceweather.com/archive.php?view=1&day=18&month=11&year=2009
Anyway, EMI, any thoughts about plastic vs. metal? Metal is way more expensive than plastic and until real estate prices come back?I'm poor!!! (If only I could find that space rock! Huumm, space rock =$$$$$) Which came first the space rock or the metal box?
Yes, I could shield the inside of the plastic box and it won't be easy but do you think I need to?
Thanks guys! Vr4mike
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http://www.thunting.com/smf/index.php/topic,28024.msg198653.html#msg198653
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