OD1402 - Lesson 1/Learning Event 1
FIGURE 2. FRONT PANEL CONTROLS.
Trigger Source Switches. Provide a trigger signal to give you a
stable display on the CRT. The trigger signal comes from three
sources:
o Left Selects the trigger signal from the left vertical
amplifier.
o Vert Mode Trigger signal automatically follows the
vertical display, except in the chopped mode. In the chopped mode,
the trigger occurs at a 1megahertz rate, under the control of an
internal oscillator.
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