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image=581_old_1.JPG| | image=581_old_1.JPG| | ||
caption=Tektronix 581 (early model) | | caption=Tektronix 581 (early model) | | ||
introduced=(?) | | |||
discontinued=(?) | | |||
summary=100 MHz (85 MHz) oscilloscope| | summary=100 MHz (85 MHz) oscilloscope| | ||
manuals= | manuals= | ||
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}} | }} | ||
The '''Tektronix 581''' is similar to the [[585]], but with simplified trigger and sweep circuitry. | The '''Tektronix 581''' is a 100 MHz tube scope similar to the [[585]], but with simplified trigger and sweep circuitry. | ||
Like all [[580-series_scopes|580-series scopes]], it uses [[580-series_plug-ins|580-series plug-ins]]. | Like all [[580-series_scopes|580-series scopes]], it uses [[580-series_plug-ins|580-series plug-ins]]. | ||
It was [[introduced in 1959]]. | It was [[introduced in 1959]]. |