21 Sep
1999
21 Sep
'99
11:34 a.m.
LordTyran <a2k(a)one.net> wrote:
About 2 years ago a friend of mine gave me a
"Bell & Howell Schools"
scope. I put it in my basement for a few years until I've had time to look
at it. A friend guided me through the alignment over the phone so I get my
dot centered on the screen. But I can't get it to start (is sweeping the
word?) I just get the dot. Turning the controls to any place other than
where he told me results in the dot falling off the screen (to the left
usually). I've tried to get results by connecting low-level audio sources
including music and white noise, but still nothing on the display other
than the dot. Any ideas?
Hi Kevin
The fact that even vertical doesn't cause deflection leads
me to believe that there is no rail voltage to the amplifiers.
It seems that you do have the high voltage ( usually 3-5KV
so watch your fingers ) but the other circuitry is missing
power.
Dwight