Assertion: trace oscilloscope | /r/CapableOf | use external trigger input
Facets:
value: as an optional vertical input
type: MANNER
Source sentences:
text: Some multi-trace oscilloscopes use the external trigger input as an optional vertical input, and some have third and fourth channels with only minimal controls.
text: Some multi-trace oscilloscopes use the external trigger input as an optional vertical input, and some have third and fourth channels with only minimal controls.