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{{Plugin Sidebar 2|
{{Plugin Sidebar
title=Tektronix 3S1 |
|manufacturer=Tektronix
summary=Sampling plug-in |
|series=560-series scopes
image=3s1_front.jpg |
|type=3S1  
caption=3S1 front view|
|summary=1 GHz sampling plug-in  
introduced=(?) |
|image=3s1_front.jpg  
discontinued=(?) |
|caption=Tektronix 3S1
series=[[560-series scopes]]|
|introduced=1967
manuals=
|discontinued=(?)
* [http://bama.edebris.com/download/tek/3s1/3s1.djvu Tektronix 3S1 Manual (DjVu)]
|designers=
* [http://w140.com/late_3s1_schematics.pdf Late 3S1 Schematics (PDF)]
|manuals=
* [[Media:070-0632-00.pdf|Tektronix 3S1 Manual]]
* [[Media:late_3s1_schematics.pdf|Late 3S1 Schematics]]
* [[Media:Tek 3s1 fcp june 1967.pdf|Tektronix 3S1 Factory Cal Procedure 1967]]
* [[Media:Tek 3s1 cal outline.pdf|Tektronix 3S1 Calibration Outline]] (OCR)
}}
}}
The '''Tektronix 3S1''' is a dual-trace [[sampling_oscilloscope|sampling]] plug-in for [[560-series scopes]]. 


The '''Tektronix Type 3S1''' is a dual-trace [[sampling_oscilloscope|sampling]] plug-in for [[560-series scopes]].  The risetime is 350 ps.
In many ways, the 3S1 is similar to the [[4S1]], but more compact.


In contrast to modular sampling plug-ins like the [[3S2]], the 3S1 has built-in sampling heads.  The signal enters
The 3S1 provides [[probe power|+100 V and −12.2 V]] for [[P6032|P6032 cathode-follower probes]].
through [[GR-874 connector]]s on the front panel. Each channel has a resistive trigger pickoff followed by a 55 ns
coaxial [[delay line]].  Following the delay line is a compensation circuit designed to (partially) undo the pulse degradation
caused by the delay line, and also to provide proper termination for low return loss at the input. 
Next in the main signal path is a four-diode sampling bridge driven by a [[snap-off diode]], D73.


In many ways, the 3S1 is similar to the [[4S1]], but more compact.
{{BeginSpecs}}
{{Spec | Rise Time | 350 ps}}
{{Spec | Bandwidth | 1 GHz (calculated) }}
{{EndSpecs}}


The 3S1 provides +100 V and -12.2 V [[probe power]].
==Links==
{{Documents|Link=3S1}}


==Specifications==
==Internals==
''please add''
In contrast to modular sampling plug-ins like the [[3S2]], the 3S1 has built-in sampling heads. 
The signal enters through [[GR-874 connector]]s on the front panel. 
Each channel has a resistive trigger pickoff followed by a 55 ns coaxial [[delay line]]. 
Following the delay line is a compensation circuit designed to (partially) undo the pulse degradation caused by the delay line, and also to provide proper termination for low return loss at the input. 
Next in the main signal path is a four-diode sampling bridge driven by a [[snap-off diode]], D73. 


==Pictures==
==Pictures==
<gallery>
<gallery>
Image:3s1_front.jpg|front view
3s1_front.jpg|front view
Image:3s1_left.jpg|left view
3s1_left.jpg|left view
Image:3s1_right.jpg|right view
3s1_right.jpg|right view
Image:3s1_top.jpg|top view
3s1_top.jpg|top view
Image:3s1_bottom.jpg|bottom view
3s1_bottom.jpg|bottom view
</gallery>
</gallery>


 
==Components==
{{Parts|3S1}}


[[Category:Sampling plugins]]
[[Category:Sampling plugins]]
[[Category:560 series plugins]]
[[Category:560 series plugins]]
[[Category:Specifications needed]]
[[Category:GR874]]
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