K: Difference between revisions

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Type 53K/54K was [[introduced in 1955|introduced in March 1955]] along with the 541/545.
Type 53K/54K was [[introduced in 1955|introduced in March 1955]] along with the 541/545.
At that time, it was the only plugin that could utilize the
At that time, it was the only plug-in that could utilize the
new mainframes' speed; the redesigned Types [[A]], [[B]], and [[C]]
new mainframes' speed; the redesigned Types [[A]], [[B]], and [[C]]
weren't ready until August 1956.  In August 1955, just five months
weren't ready until August 1956.  In August 1955, just five months
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It was dropped after 1970.
It was dropped after 1970.


Type K was the fastest of the single-channel plugins.
Type K was the fastest of the single-channel plug-ins.
Tek did not equal it until Type [[L]] in 1957,
Tek did not equal it until Type [[L]] in 1957,
and did not exceed it until Type [[1A1]] in 1964.
and did not exceed it until Type [[1A1]] in 1964.
Earlier single-channel plugins had two inputs and a
Earlier single-channel plug-ins had two inputs and a
switch to select between them, making it convenient
switch to select between them, making it convenient
to probe two test points at once.  The Type K design
to probe two test points at once.  The Type K design
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The name was deliberately chosen to be halfway into the alphabet.  Slow
The name was deliberately chosen to be halfway into the alphabet.  Slow
plugins would use A-J and fast ones L-Z.  This idea never went anywhere.
plug-ins would use A-J and fast ones L-Z.  This idea never went anywhere.


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


Types [[K]] and [[G]] are the only letter-series plugins
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.


* [http://bama.edebris.com/manuals/tek/k/| Tektronix Type K Manual (BAMA)]
* [http://bama.edebris.com/manuals/tek/k/| Tektronix Type K Manual (BAMA)]
* [http://w140.com/tek_fcp/tek_type_k_factory_cal_proc.pdf Tektronix Type K Factory Calibration Procedure (PDF)]
* [http://w140.com/tek_fcp/tek_type_k_factory_cal_proc.pdf Tektronix Type K Factory Calibration Procedure (PDF)]

Revision as of 21:21, 10 December 2011

The Tektronix Type K is a plug-in for 500-series scopes.

Max sensitivity is 50mV/div, and bandwidth in a 545 is 30MHz.

Type 53K/54K was introduced in March 1955 along with the 541/545. At that time, it was the only plug-in that could utilize the new mainframes' speed; the redesigned Types A, B, and 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.

Type K was the fastest of the single-channel plug-ins. Tek did not equal it until Type L in 1957, and did not exceed it until Type 1A1 in 1964. 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. 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 plug-ins would use A-J and fast ones L-Z. This idea never went anywhere.

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

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