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{{Plugin Sidebar 2 |
{{Plugin Sidebar
title=Tektronix Type K |
|manufacturer=Tektronix
summary=30 MHz amplifier plug-in |
|series=500-series scopes
image=K_1.JPG |
|type=Type K
caption=Type K |
|summary=30 MHz amplifier plug-in
series=[[500-series scopes]] |
|image=Tek type k front view.jpg
introduced=1955 |
|caption=Type K
discontinued=1971 |
|introduced=1955
manuals=
|discontinued=1971
* [http://w140.com/mmm/tek-k.pdf Tektronix Type K Manual (PDF)]
|designers=John Kobbe;
* [http://bama.edebris.com/download/tek/k/k.djvu Tektronix Type K Manual (DJVU, BAMA, offline?)]
|manuals=
<!-- * [http://w140.com/tek_fcp/tek_type_k_factory_cal_proc.pdf Tektronix Type K Factory Calibration Procedure (PDF)] -->
* [[Media:070-230.pdf|Tektronix Type K Manual]] (OCR)
* [[Media:tek_type_k_fcp.pdf|Tektronix Type K Factory Calibration Procedure (PDF, OCR)]]
* [[Media:tek_type_k_fcp.pdf|Tektronix Type K Factory Calibration Procedure (PDF, OCR)]]
}}
}}
The '''Tektronix Type K''' is a plug-in for [[500-series scopes]].
The '''Tektronix Type K''' is a 30 MHz amplifier plug-in for [[500-series scopes]].


Type 53K/54K was designed by [[John Kobbe]], and [[introduced in 1955|introduced in March 1955]] along with the [[541]]/[[545]]. In August of 1955, just five months after introduction, it was renamed Type 53/54K, and in 1959, when the 541A/545A mainframes came out, it got its final name, Type K. It was dropped after 1970, with [[L|Type L]] replacing it.
The name was deliberately chosen to be halfway into the alphabet.  Slow plug-ins would use A-J and fast ones L-Z.  This idea never went anywhere.
{{MissingSpecs}}
Max sensitivity is 50 mV/div, and bandwidth in a [[545]] is 30 MHz.
Max sensitivity is 50 mV/div, and bandwidth in a [[545]] is 30 MHz.


Type 53K/54K was [[introduced in 1955|introduced in March 1955]] along with the [[541]]/[[545]].
At the time of introduction, it was the only plug-in that could utilize more than half of the new mainframes' speed − the [[A|Type A]], [[B|Type B]], and [[C|Type C]] upgrades weren't ready until August 1956.
At that time, it was the only plug-in that could utilize the new mainframes' speed;
the redesigned [[A|Type A]], [[B|Type B]], and [[C|Type C]] weren't ready until August 1956.
In August 1955, just five months after introduction, it was renamed Type 53/54K,
and in 1959, when the 541A/545A mainframes came out, it got its final name, Type K.
It was dropped after 1970, with [[L|Type L]] replacing it.
 
[[K]], [[L]], and [[T]] are tied for longest production life, at 16 years.
[[B]], [[D]], and [[G]] are next at 15 years.


Type K was the fastest of the single-channel plug-ins.
Types K, [[L]], and [[T]] are tied for longest production life, at 16 years. [[B]], [[D]], and [[G]] are next at 15 years.
Tek did not equal it until [[L|Type L]] in 1957,
and did not exceed it until [[1A1|Type 1A1]] in 1964.


Earlier single-channel plug-ins had two inputs and a
Type K was the fastest of the single-channel plug-ins, and the first plug-in to use [[T-coil|T-coils]].  Tek did not equal it until [[L|Type L]] in 1957, and did not exceed it until [[1A1|Type 1A1]] in 1964.
switch to select between them, making it convenient
to probe two test points at once.  The Type K design
could not tolerate the extra stray capacitance,
and the feature was dropped, never to return.


The name was deliberately chosen to be halfway into the alphabet.  Slow
Earlier single-channel plug-ins had two inputs and a switch to select between them, making it convenient to probe two test points at once.   
plug-ins would use A-J and fast ones L-Z.  This idea never went anywhere.
The Type K design could not tolerate the extra stray capacitance, and the feature was dropped, never to return.
(Exception: the [[7A16P]], which has two input connectors and provides the ability to select which one is fed to the amplifier.)


Late versions had a [[BNC connector]] instead of a [[UHF connector]].
Late versions had a [[BNC connector]] instead of a [[UHF connector]].


Types [[K]] and [[G]] are the only letter-series plug-ins
Types K and [[G]] are the only letter-series plug-ins
where the Gain vernier is not concentric with the step attenuator.
where the Gain vernier is not concentric with the step attenuator.


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Tek k 1498 5.jpg
Tek k 1498 5.jpg
Tek k 1498 6.jpg
Tek k 1498 6.jpg
Tek type k late style.jpg|late style
</gallery>
</gallery>


{{Parts|K}}


[[Category:500 series plugins]]
[[Category:500 series plugins]]
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