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The Tektronix Type 3S1 is a dual-trace [[sampling_oscilloscope|sampling]] plug-in for [[560-series scopes]].
{{Plugin Sidebar
It has built-in sampling heads with [[Connectors#GR-874|GR-874 connectors]]  
|manufacturer=Tektronix  
and 350ps risetime.
|series=560-series scopes
The 3S1 has internal trigger pick-off on both channels.
|type=3S1  
The 3S1 is similar to the [[4S1]], but more compact.
|summary=1 GHz sampling plug-in  
|image=3s1_front.jpg
|caption=Tektronix 3S1
|introduced=1967
|discontinued=(?)
|designers=
|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]].


* [http://bama.edebris.com/manuals/tek/3s1/3s1.djvu Tektronix 3S1 Manual (DjVu)]
In many ways, the 3S1 is similar to the [[4S1]], but more compact.
* [http://w140.com/late_3s1_schematics.pdf Late 3S1 Schematics (PDF)]


The 3S1 provides [[probe power|+100 V and −12.2 V]] for [[P6032|P6032 cathode-follower probes]].
{{BeginSpecs}}
{{Spec | Rise Time | 350 ps}}
{{Spec | Bandwidth | 1 GHz (calculated) }}
{{EndSpecs}}
==Links==
{{Documents|Link=3S1}}
{{PatentLinks|3S1}}
==Internals==
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==
<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:560 series plugins]]
[[Category:GR874]]

Latest revision as of 10:59, 19 June 2024

Tektronix 3S1
1 GHz sampling plug-in
Tektronix 3S1

Compatible with 560-series scopes

Produced from 1967 to (?)

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix 3S1 is a dual-trace sampling plug-in for 560-series scopes.

In many ways, the 3S1 is similar to the 4S1, but more compact.

The 3S1 provides +100 V and −12.2 V for P6032 cathode-follower probes.

Key Specifications

Rise Time 350 ps
Bandwidth 1 GHz (calculated)

Links

Documents Referencing 3S1

Document Class Title Authors Year Links
Service Scope 52 Oct 1968.pdf Article The State of the Art in Sampling Al Zimmerman 1968 S-1 • S-2 • S-3 • S-4 • S-50 • S-51 • 285 • 3S1 • 3S2 • 3S5 • 3S6 • 3T2 • 3T5 • 3T6 • 3T77A • 568 • 230

Internals

In contrast to modular sampling plug-ins like the 3S2, the 3S1 has built-in sampling heads. The signal enters through GR-874 connectors 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

  • front view

    front view

  • left view

    left view

  • right view

    right view

  • top view

    top view

  • bottom view

    bottom view

Components

Some Parts Used in the 3S1

Part Part Number(s) Class Description Used in
151-0261-00 151-0261-00 Discrete component dual PNP transistor AM501 • AM502 • CG5001 • CG551AP • FG501 • FG502 • FG503 • OF150 • OF151 • OF152 • OF235 • OS261 • RM502A • R1140 • R5030 • R5031 • R7912 • 067-0679-00 • 067-0807-00 • 1101 • 1140A • 1141 • 1142 • 1350 • 145 • 1450 • 1480 • 1481 • 1482 • 1485 • 1501 • 1801 • 1900 • 1910 • 1980 • 213 • 26A1 • 26A2 • 2620 • 285 • 3A9 • 3A10 • 3S1 • 3S2 • 3S5 • 3S6 • 432 • 434 • 4501 • 454 • 4601 • 4602 • 4610 • 4612 • 4620 • 4632 • 4634 • 4701 • 475 • 492 • 492A • 492AP • 494 • 494P • 496 • 496P • 5A13N • 5A20N • 5A21N • 5A22N • 5A26 • 5L4N • 502A • 5030 • 5031 • 576 • 690SR • 7A22 • 7A29 • 7B51 • 7B71 • 7J20 • 7L5 • 7S11 • 7S12 • 7912AD
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