scopes [was: how to troubleshoot? ...]

[Glen]

At 01:14 PM 1/15/01 , Happy Harry wrote:
>The XYZ unit sounds like a vectorscope. I'm not sure what the
>professional use of these are, I think some kind of video
>or communication use...

My Hitachi dual channel oscilloscope will let you assign the two input
channels as "X" and "Y". Then there is an input on the back of the unit
labeled "Z", which controls the intensity of the beam in response to
voltage fed into this input. 

Although I've used the "X" and "Y" features. I've never used this "Z input"
feature. Does anyone know of a good use for it?

Later,
Glen