E 1 Scopes Flashcards
What is the function of electron gun
It emits a narrow beam of electrons
What controls left right movements of electron beam
Horizontal the flexion plates
What controls the up-and-down movement of the electron beam
Vertical deflection plates
Which plate test voltage
Vertical deflection plates
What is the purpose of sawtooth footage
Sweeps the electron beam from left to right
What is the name given to a screen grid system
Graticule
How many vertical and horizontal divisions are on the screen of the CRT
8 vertical
10 horizontal
If the same voltage is applied to the vertical and horizontal deflection plates
The beam will move 45° to the right
What triggers the sawtooth voltage
Vertical signal
What magnitude of voltage can be present in the electron gun
1000 to 25,000 V
What does the trace rotation do
Adjusts the trace to make it parallel with the x-axis
What is direct coupling
All components on the vertical input appear on the screen
What does the volt switch do
Selects the amount of voltage in each centimeter on y-axis
What way do you turn the control knob for volts calibration.
Fully clockwise
What does time/div control do
Selects time period each cm equals x axis
