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Old 21st March 2003, 01:35 PM   #11
haldor is offline haldor  United States
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Quote:
Originally posted by till
Its the same virus of ridiculous behavior the mods have shown at the peace thread and others. It was a bad mistake to install this moderating thing. No we have aome kind of goverment that annoys us. How to get rid of this ?
Perhaps you could get a UN resolution? I'll bet the French would enforce it.

Phil
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Old 21st March 2003, 02:08 PM   #12
SY is offline SY  United States
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Quote:
Originally posted by Jason


pml

...and no, i don't really want my *** sued for providing a well intentioned (presently) non-profit service to the community.
Exactly. It's easy to criticize other people's choices when you're not the one at the wrong end of a lawyer.

And a serious question- I've started work on a HV amp design, direct drive for ESLs, with 7 or 8kV as the plate supply. Would you (the "corporate" you) rather I didn't talk about it or post info on WIP or schematics?
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Old 21st March 2003, 02:16 PM   #13
dhaen is offline dhaen  Europe
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Quote:
Originally posted by SY


Exactly. It's easy to criticize other people's choices when you're not the one at the wrong end of a lawyer.

And a serious question- I've started work on a HV amp design, direct drive for ESLs, with 7 or 8kV as the plate supply. Would you (the "corporate" you) rather I didn't talk about it or post info on WIP or schematics?
The difference is surely, that it's unlikely that someone inexperienced would try the direct-drive ESL project, whereas (almost) everyone has a TV.
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Old 21st March 2003, 04:10 PM   #14
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Default Better Biomed than dead

"Then again one could always set a thread voltage limit"

On one one my Biomedical Electronics exams was the following question:

"A man is working on a car with a 12V electrical system. The car is not running and the man has cut both hands working. Is he in danger?

The answer is YES. When you break the skin the blood stream is pretty conductive, in range of several hundred ohms as I remember. 12 volts arcross this resistance (and across a path containing your heart) is enough current to fibrilate you heart and stop it. I urge insulation, dry skin and work surfaces, and one hand only in the circuits. I have had a run in with an electrostatic speaker that was unplugged for several days and several tube amps. I am still here to talk about it but they were painful and alarming experiences. Sometimes the people who know the most about something are the most careless concerning that subject. I wonder if the reason I haven't killed myself is along the lines of the following:

"You can't drown a man who was born to hang."

-Mark Twain
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Old 21st March 2003, 05:23 PM   #15
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Er ,Has anyone considered wearing protective gloves when
risks of dangerous voltages are present?
I hear talk of 'one hand behind back etc'[all sound advice]
but no mention of protective gear.

Or is this more like firearms safety protocols :
Condition safe behavior rather than trust to safety mechanisms.
Such a philosophy is something I am familiar with being a sporting
shooter myself.

Obviously there are plenty of old hands here but there are also
those who are new to the game[myself included here] who may
be brimming with enthusiasm and little else.
As with firearms some mistakes only need to happen once


Setmenu
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Old 21st March 2003, 10:29 PM   #16
haldor is offline haldor  United States
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I guess I don't consider gloves that much protection due to my RF experiance. At high frequencies the couple of hundred pF of a human might as well be a dead short.

Worst shock I ever got was when I impaled myself on a wisker of wire sticking out of a very inexpertly done soldering job. That wisker of wire punctured my thumb and I was sure that was it, it's all over for me. That was with 24 VDC.

The keep one hand in your pocket (of grab your belt when seated) rule for working on energised equipment works because it keeps your heart out of the current path.

I once saw a man get his arm across 3-phase 408 VAC. He lived, probably because the ground connection was through the end of his steel-toed shoe. Got the back of his arm and his big toe burnt pretty badly in the process. Didn't do the shoe much good either.

Phil
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Old 23rd March 2003, 09:18 PM   #17
Jason is offline Jason  Australia
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Quote:
Originally posted by SY

And a serious question- I've started work on a HV amp design, direct drive for ESLs, with 7 or 8kV as the plate supply. Would you (the "corporate" you) rather I didn't talk about it or post info on WIP or schematics?
I would ask that you post comprehensive safety and warning information wherever appropriate, remembering that a google surfer could enter the thread at any page.

I'm not sure what the moderator team's stance is on this - but their word is final, and I know they have our best interests at heart.
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Old 23rd March 2003, 09:58 PM   #18
SY is offline SY  United States
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Wilco. Thanks.
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Old 4th April 2003, 08:35 AM   #19
shyfx is offline shyfx  Australia
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Maybe make a hack for the boards that checks the referrer (most browsers do send the referrer these days) and if it is from an external source it will display a warning page. They then click the link to view the thread after reading a disclaimer and of course, the referrer will be that page, which is located on this server thus it will give them the thread stuffs that they were out to seek.

Also perhaps including it in the disclaimer if there already isn't one (I never read those darned things hehe) and one when signing up.
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