Jeff Urban wrote:


Why the hell didn't they just go with electrostatic deflection like in
a scope ?

You need quite a lot of voltage to swing the beam. Vertical is
not so tough, but a linear amp to swing maybe 500+ Volts at
horizontal frequency and have high enough bandpass for the horizontal
retrace is ALSO going to burn a good deal of power. The
magnetic sweep system is mostly a switching power supply, and
so gets a good reduction in power dissipation that way.

Jon