List four controls on front panel of dual trace CRO.
(i)X-shift on CRO: Controls the horizontal position of the display i.e moves the spot across the screen left and right.
ii) CT MODE Button on CRO: To test different components
iii) Symmetry knob on function generator: Select either positive pulse/ramp or negative pulse/ramp
iv) Level knob on function generator: Determines where on the edge the trigger point occurs i.e. it’s a Variable control, selects the trigger point on the displayed waveform.
v) V/div on CRO: To control the gain/attenuation of vertical amplifier
vi) Mono/Dual Button on CRO: In DUAL, operates as a DUAL trace scope in ALT or CHOP mode as selected.