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Author Topic: What' the big deal?  (Read 1084 times)

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swaffar

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What' the big deal?
« on: December 27, 2010, 04:52:24 pm »
I've gotta be honest... I'm a bit confused by all this talk of the dangers of discharging CRTs.  I maintain fighter jets day-in and day-out in the Air Force; F-15s and A-10s.  Sure, you need to be safe.  But sometime duty calls, and you end up troubleshooting high voltages outside... in heavy rain.  I'm talking about enough juice to make metal connectors and backshells melt and pins fuse together... or disappear altogether.  On one occasion while shooting a live wire, the harness re-situated itself, shorting my lead to a bracket (aircraft ground, a.k.a. chassis) and a nice, dime-sized chunk of metal disappeared.  This was power coming straight off of a (running) jet-engine generator.  I've personally absorbed this same(and many other) voltage(s) on a few occasions.  Does it suck?  Yes.  Did I get thrown through the air?  No.  Why is everyone so concerned with voltage anyway?  Current's where the real pain is.  

Hell, now-a-days, when I'm really lazy and I don't have a multimeter handy, I just do what I like to call a "lick-check" to make sure the power is good.  Because let's be serious... just because the voltage checks good, doesn't mean the amps are good.  28 VDC's for babies... 115 VAC's a little pinch, but not too bad.  Touching a GLC (ground line contactor) or a BTC (bus tie contactor) is pretty crappy... but once you change your shorts, you're good to go.  So why all the fuss about a cathodes and rays and tubes?

Anyway, I'm just saying.
« Last Edit: December 27, 2010, 04:55:17 pm by swaffar »
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grantspain

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Re: What' the big deal?
« Reply #1 on: December 27, 2010, 06:02:44 pm »
about 27kv from a 29" crt,it hurts a little-got one through the thumb and out my elbow to earth a few months back
it was quite funny tbh

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Re: What' the big deal?
« Reply #2 on: December 27, 2010, 10:19:18 pm »
I built a mock tesla coil out of a flyback in middle school. Used to hook it up to five of six people holding hands and let the end person touch ground to see who would let go first. Good times.

It would illuminate a grounded fluorescent bulb just by being near it.