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{{Plugin Sidebar | | {{Plugin Sidebar | ||
|manufacturer=Tektronix | |||
summary=30 MHz amplifier plug-in | | |series=500-series scopes | ||
image=Tek type k front.jpeg| | |type=Type K | ||
caption=Type K | |summary=30 MHz amplifier plug-in | ||
|image=Tek type k front.jpeg | |||
introduced=1955 | | |caption=Type K | ||
discontinued=1971 | | |introduced=1955 | ||
manuals= | |discontinued=1971 | ||
|designers=John Kobbe; | |||
|manuals= | |||
* [[Media:070-230.pdf|Tektronix Type K Manual]] (PDF) | * [[Media:070-230.pdf|Tektronix Type K Manual]] (PDF) | ||
** [http://bama.edebris.com/download/tek/k/k.djvu Alternate (DJVU @ BAMA)] | ** [http://bama.edebris.com/download/tek/k/k.djvu Alternate (DJVU @ BAMA)] | ||
* [[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. | ||
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. | |||
the [[A|Type A]], [[B|Type B]], and [[C|Type C]] upgrades weren't ready until August 1956 | |||
Types 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, 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. | 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. | ||
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The Type K design could not tolerate the extra stray capacitance, and the feature was dropped, never to return. | 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.) | (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 | 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. | ||
==Pictures== | ==Pictures== | ||