I just got a Tek 11302 scope. It's in fine shape and most everything seems to work well.
Except for one thing-- the main trace pulses and flashes a bit-- if you adjust the sweep speed just right, you can see the beam is going off for a few milliseconds every 20 msec or so, probably to go refresh all the legends on the screen.
Now I suspect that is supposed to happen during the retrace time and not be quite so noticeable.
Can anybody confirm whether this is normal or abnormal behavior?
Thanks,
A_H