[sdiy] Scope Probe

[KA4HJH]

>Sorry for the totally beginner question.......
>Ive got an old scope that I got for free, w/ no probles.  Ive tried using
>it w/out the probes.  Just using wires.  Should it work at all like this?
>I can get it tuned in to a wave /\/\/\/  but that wave like the smaller
>part of a bigger wave that goes up and down the screen.  Ive tested
>several things and all seem to have the same result.
>
>Is this thing broken, or will it work if I get a probe?

You're picking up AC hum, which is a good sign. With a proper probe
(shielded, correct impedance) you won't have that problem.

Expect others to chime in with probe buying advice. Mine came with lots of
useful accessories.

-- 

Terry Bowman, KA4HJH
"The Mac Doctor"