Exactly Mark - the question isn't stupid if you need to ask it. But people do take the 'mick'.
I have been asked if fuses are polarised...
I read a work sheet that read "fuse not completely blown - resistance x ohms"
One guy said in panic in theatres...
"&%&*$ the picture is upside down!!!"(I was holding the camera head in my hands at the time and rotated it through 180 degrees)
New guys - or even people who have been 'at it' for years need help.
Isn't this forum great
However, strangely enough - I've forgotten the questions that I must have asked when I started
