Letting the Smoke Out.... I use to work with an old fella from New Orleans... He introduced us to the concept of "Darn, Now it will never work, you done let the Smoke Out"... This was immediatly after one of the assistants was attempting to hook two wet cell batteries in series and actually wired, hot to hot and ground to ground!... Boy did that "let the smoke out"... Thanks for bringing back an old memory..

http://www.plsn.com/index.php?option=com_content&task=view&id=2049&Itemid=1

I was in the shower this morning & the phone rang - Oh !
Completely wet [a normal condition] I answered it.
It was an old marra from the theatre, who I worked with for many a year.
Although he has been a lighting techie for gawd knows how long?
He asked me a basic question about Ohms Law.
After he rang off, as I was almost dry, I thought I'd have a bath anyway & try to think about this. How has he messed about with electrical stuff for ages without actualy understanding the basics of it?
After having thought long enough for the water became cool & to add more hot!
I wondered how if this was indeed the case with a lot of CT & PT theatre techies.
So as it look like rain, I thought I'd visit 'Club Tech' & sort of find out today! (Well that's my excuse for being in the fo'c'stle today!)

Here is an Ohms Law calculator & formula chart;-
http://www.angelfire.com/pa/baconbacon/page2.html
That could be a handy tool to hang on to?
In fact if your insterested, most electrical equipment suppliers have a carry in the pocket card, as a free give away, which might be better than lugging around a pc!
[This is of course is without prejudice to & not with  standing, the excelent S.M.O.K.E proposition put by loseph Lucus & the bell Labs]
{DISCLAIMER;- There is no consumption on my part, that Techies would not understand Ohms Law & practice in safe sets at all times! - But it may be of assistance to those wishing to venture into the  dark side!}