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A sliding switch on the analog ROM readout board (internal to the scope) allows the operator to select "gate triggered" mode, in which the readout signal is produced only after a sweep has occurred. The advantage of this mode is that the beam is not interrupted while drawing the signal, however, if no sweep occurs there is no readout, and if the sweep is slow, the readout flickers. | A sliding switch on the analog ROM readout board (internal to the scope) allows the operator to select "gate triggered" mode, in which the readout signal is produced only after a sweep has occurred. The advantage of this mode is that the beam is not interrupted while drawing the signal, however, if no sweep occurs there is no readout, and if the sweep is slow, the readout flickers. | ||
In certain mainframes such as the [[7844]], [[7904A]] and [[7104]], turning the readout display intensity control past the maximum intensity setting switches readout into pulsed mode. | In certain mainframes such as the [[7844]], [[7904A]], [[7934]], and [[7104]], turning the readout display intensity control past the maximum intensity setting switches readout into pulsed mode. | ||
Depending on a second switch, readout occurs at the end of the sweep ("+ GATE") or when triggered by a back-panel "Graticule/Readout Single Shot" input. These scopes also have a "manual readout" button and similar controls for pulsed graticule illumination. | Depending on a second switch, readout occurs at the end of the sweep ("+ GATE") or when triggered by a back-panel "Graticule/Readout Single Shot" input. These scopes also have a "manual readout" button and similar controls for pulsed graticule illumination. | ||