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1S1: Difference between revisions
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Reverted edits by Peter (talk) to last revision by David Wise
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caption=1S1 front view| | caption=1S1 front view| | ||
introduced=1965 | | introduced=1965 | | ||
discontinued= | discontinued=1974 | | ||
series=[[500-series scopes]]| | series=[[500-series scopes]]| | ||
manuals= | manuals= | ||
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and the horizontal voltage from the oscilloscope can be used to control the 1S1, as described below. | and the horizontal voltage from the oscilloscope can be used to control the 1S1, as described below. | ||
The 1S1 has a 50 Ω [[GR-874 connector]] for signal input. The plug-in supplies power (+100 V and -12.6 V) to | The 1S1 has a 50 Ω [[GR-874 connector]] for signal input. The plug-in supplies power (+100 V and -12.6 V) to accessories like the [[P6032]] Cathode Follower Probe, the [[281]] TDR Pulser, and the [[282]] Probe Adapter. | ||
The 1S1 can operate in normal self-swept mode or an external sweep signal can be applied to the 1S1. | The 1S1 can operate in normal self-swept mode or an external sweep signal can be applied to the 1S1. | ||
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so the the 1S1 acts as a lookup table, a mapping of x to y, a function. | so the the 1S1 acts as a lookup table, a mapping of x to y, a function. | ||
The 661 also has this capability, in its "A vert/B horiz" mode, which is like X-Y mode for a sampler. | The 661 also has this capability, in its "A vert/B horiz" mode, which is like X-Y mode for a sampler. | ||
In this mode, the horizontal-in voltage controls | In this mode, the horizontal-in voltage controls the time after the trigger event when the sample should be taken, | ||
and the vertical-out voltage corresponds to the voltage measured at that instant. | and the vertical-out voltage corresponds to the voltage measured at that instant. | ||
This allows a waveform to be digitized using an arbitrarily slow DAC to generate the horizontal voltage | This allows a waveform to be digitized using an arbitrarily slow DAC to generate the horizontal voltage | ||
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The sampler in the 1S1 is quite different from the sampler in the [[1S2]]. The 1S1 uses a [[sampling diodes|four-diode]] sampling bridge, terminated within the 1S1. The 1S2 uses a two-diode feed-through sampler, typical for TDR instruments. | The sampler in the 1S1 is quite different from the sampler in the [[1S2]]. The 1S1 uses a [[sampling diodes|four-diode]] sampling bridge, terminated within the 1S1. The 1S2 uses a two-diode feed-through sampler, typical for TDR instruments. | ||
Type 1S1 was [[introduced in 1965]] and sold through 1973. | Type 1S1 was designed by [[Chuck Edgar]], [[introduced in 1965]] and sold through 1973. | ||
The Type [[282]] Probe Adapter works with the 1S1. | The Type [[282]] Probe Adapter works with the 1S1. | ||