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{{Plugin Sidebar 2|
{{Plugin Sidebar
title=Tektronix 7S12|
|manufacturer=Tektronix
summary=Time Domain Reflectometer / Sampler|
|series=7000-series scopes
image=tek_7s12_with_heads.jpg|
|type=7S12
caption=Tektronix 7S12 TDR/Sampler with [[S-6]] and [[S-52]] heads|
|summary=Time Domain Reflectometer / Sampler
introduced=1971 |
|image=7s12-s6-s52-f.jpg
discontinued=1989 |
|caption=Tektronix 7S12 TDR/Sampler with [[S-6]] and [[S-52]] heads
series=[[7000-series scopes]]|
|introduced=1971  
manuals=
|discontinued=1989
* [http://bama.edebris.com/download/tek/7s12/tek-7s12.pdf Tektronix 7S12 Manual (PDF)]
|manuals=
* [http://w140.com/smb/7s12_hi_sm.pdf Tektronix 7S12 Manual (OCR, PDF)]
* [[Media:070-1244-00.pdf | Tektronix 7S12 Instruction Manual S/N B020000-up revised June 1986]] (OCR)
<small>
'''Alternate copies'''
* [[Media:070-1244-00 2.pdf|Tektronix 7S12 Manual]] (greyscale, OCR)
* [https://bama.edebris.com/download/tek/7s12/tek-7s12.pdf Tektronix 7S12 Manual] (PDF @ BAMA)
}}
}}
The Tektronix '''7S12''' is a Time Domain Reflectometer / Sampler plug-in for [[7000-series scopes]].
It occupies two mainframe plug-in bays (one vertical, one horizontal). 


The Tektronix '''7S12''' is a Time Domain Reflectometer / Sampler plug-in for [[7000-series scopes]].  It occupies two mainframe plug-in bays (one vertical, one horizontal). 
The 7S12 has two bays for [[:Category:7000 and 3S series sampling heads|S-series plug-in modules ("heads")]].
 
The right bay accepts a pulse generator or a trigger recognizer plug-in, whereas the left bay accepts a sampling plug-in.
The 7S12 has two bays for [[:Category:7000 and 3S series sampling heads|S-series plug-in modules ("heads")]]. The right bay accepts a pulse generator or a trigger recognizer plug-in, whereas the left bay accepts a sampling plug-in.


The typical configuration is to have an [[S-6]] on the left and an [[S-52]] on the right for time domain reflectometry, or a sampling head like the [[S-4]] on the left and an [[S-53]] on the right as a generic sampler.
The typical configuration is to have an [[S-6]] on the left and an [[S-52]] on the right for time domain reflectometry, or a sampling head like the [[S-4]] on the left and an [[S-53]] on the right as a generic sampler.


The 7S12 can also control an optional [[7S11]] through its left side contacts, adding a second input channel.
The 7S12 can also control an optional [[7S11]] through its [[7000-series Sampling Shoe|left side contacts]], adding a second input channel.


Y axis can be scaled in voltage (mV) or distance (&rho;) units, X axis in time or distance.   
Y axis can be scaled in voltage (mV) or reflection coefficient (&rho;) units, X axis in time or distance.   


{{BeginSpecs}}
{{BeginSpecs}}
{{Spec | Sweep modes | Single / Repetitive / Manual / External input}}
{{Spec | Sweep modes | Single / Repetitive / Manual / External input}}
{{Spec | With S-6 and S-52 |
{{Spec | With [[S-6]] and [[S-52]] |
* Pulse: 200 mV into 50 &Omega;
* Pulse: 200 mV into 50 Ω
* Rise time: < 35 ps for incident step, < 45 ps for displayed reflection
* Rise time: < 35 ps for incident step, < 45 ps for displayed reflection
* Jitter: < 10 ps
* Jitter: < 10 ps
}}
{{Spec | With [[S-5]] and [[S-54]] |
* Pulse: > 400 mV into 50 Ω
* Rise time: < 1.5 ns for displayed reflection of a shorted line
* Jitter: < 20 ps
}}
}}
{{Spec | Sweep modes |
{{Spec | Sweep modes |
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* manual
* manual
* external input
* external input
}}
{{Spec | Air Dielectric Range |
* 15 m (49 ft)
* 150 m (490 ft)
* 1500 m (4900 ft)
}}
}}
{{Spec | Weight | 2.13 kg (4.7 lbs)}}
{{Spec | Weight | 2.13 kg (4.7 lbs)}}
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==Links==
==Links==
* [[Media:062-1244-00.pdf | Tektronix 062-1244-00: Time-Domain Reflectometry Measurement Concepts]], James A. Strickland, 1969. pages. PDF, OCR, 6.2 MB
* [[Media:062-1244-00.pdf | Tektronix 062-1244-00: Time-Domain Reflectometry Measurement Concepts]], James A. Strickland, 1969. pages.
* [[Media:Service Scope 45 Aug 1967.pdf  | Service Scope No. 45, August 1967 - Time-Domain Reflectometry Theory]]
* [[Media:Service Scope 45 Aug 1967.pdf  | Service Scope No. 45, August 1967 - Time-Domain Reflectometry Theory]]
* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_special/7S12.htm Tek 7S12 @ amplifier.cd]
* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_special/7S12.htm Tek 7S12 @ amplifier.cd]
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* [http://www.youtube.com/watch?v=btmrIN62iDc Evaluation of 7S12 performance (video)]
* [http://www.youtube.com/watch?v=btmrIN62iDc Evaluation of 7S12 performance (video)]
* [http://www.perdrix.co.uk/7S12/index.htm#mozTocId226019 7S12 extender board by Dave Partridge]
* [http://www.perdrix.co.uk/7S12/index.htm#mozTocId226019 7S12 extender board by Dave Partridge]
{{Documents|Link=7S12}}


==Pictures==
==Pictures==
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7s12-s6-s52-7613.jpg | 7S12 TDR "self portrait" in [[7613]] storage mainframe
7s12-s6-s52-7613.jpg | 7S12 TDR "self portrait" in [[7613]] storage mainframe
7s12-7s11-1ghz-store.jpg | 7S12 as a sampler, displaying a 1 GHz sine using a [[S-6]] sampling head and [[S-53]] trigger recognizer, 2<sup>nd</sup> channel (top) on a [[7S11]] with [[S-4]] sampling head.
7s12-7s11-1ghz-store.jpg | 7S12 as a sampler, displaying a 1 GHz sine using a [[S-6]] sampling head and [[S-53]] trigger recognizer, 2<sup>nd</sup> channel (top) on a [[7S11]] with [[S-4]] sampling head.
Tek 7s12 metric dial tape.jpg|Metric dial tape
Tek 7s12 with s-6 and s-52.jpg
Tek 7s12 s-6 s-52 with cable.jpg
tek_7s12_with_heads.jpg
</gallery>
</gallery>


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7s12-7s11-1ghz-store2.jpg |  [[7S11]] with [[S-4]] and 7S12 with [[S-6]] and [[S-53]] displaying a 1 GHz sine in high-res mode with variable-persistence storage on a [[7613]].
7s12-7s11-1ghz-store2.jpg |  [[7S11]] with [[S-4]] and 7S12 with [[S-6]] and [[S-53]] displaying a 1 GHz sine in high-res mode with variable-persistence storage on a [[7613]].
</gallery>
</gallery>
==Components==
{{Parts|7S12}}




[[Category:7000 series combined plugins]]
[[Category:7000 series combined plugins]]
[[Category:Sampling plugins]]
[[Category:7000 series sampling plugins]]
[[Category:Time-domain reflectometers]]
[[Category:Time-domain reflectometers]]
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