21 Apr 2023summary
H.T. supply
heater supply
y plates x plates
+-phosphor screen
anode
electron gun produces a beam
of electrons light produced on the screen by electron beam
a p.d. across the y plates deflects the
trace vertically
a p.d. across the x plates deflects the trace horizontally
21 Apr 2023period & frequency
period = 4.0 divisions x 1.0 ms/div = 4.0 ms
frequency = 1 / periodfrequency = 1 / 0.004 sfrequency = 250 Hz