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{{Plugin Sidebar | |||
|manufacturer=Tektronix | |||
|series=500-series scopes | |||
|type=Type N | |||
|summary=Sampling system plug-in | |||
|image=Tek n front.jpeg | |||
[[ | |caption=Type N front view | ||
The Type N | |introduced=1960 | ||
|discontinued=1964 | |||
|designers=Norm Winningstad | |||
|manuals= | |||
* [[Media:070-209.pdf|Tektronix Type N Manual Complete]] (OCR) | |||
* [[Media:tek_type_n_fcp.pdf|Tektronix Type N Factory Calibration Procedure]] (OCR) | |||
* [[Media:Tek type n cal outline.pdf|Tektronix Type N Calibration Outline]] (OCR) | |||
* [[Media:Tektronix Type N Movie Notes.pdf|Transcript of "Sampling Oscilloscopes and Techniques" Training Film by Norm Winningstad (PDF)]] | |||
<!-- | |||
* [http://w140.com/tek_type_n.pdf Tektronix Type N Manual Complete (PDF, OCR)] | |||
* [http://bama.edebris.com/manuals/tek/n Tektronix Type N Manual] (@ BAMA, without schematics) | |||
* [http://w140.com/tektronix_type_n_schematics.pdf Tektronix Type N Schematics] | |||
* [[Media:tek_type_n_manual_no_schematics.pdf|Tektronix Type N Manual without schematics (PDF, OCR, bad-OCR)]] | |||
<!-- * [[Media:tek_type_n_schem.pdf|Tektronix Type N Schematics (PDF, OCR)]] --> | |||
}} | |||
The '''Tektronix Type N''' is a [[sampling_oscilloscope|sampling]] plug-in for [[500-series scopes]]. | |||
It was the first sampler produced by Tektronix. | |||
Its risetime is specified to be under 600 picoseconds. | |||
Type N was [[introduced in 1960]], superseded by the [[661|Type 661]] Sampling Oscilloscope system a year later, and discontinued in 1964. | |||
the | |||
The vertical scale of the Type N is fixed | Type N is a complete sampling subsystem, using the 500-series oscilloscope just as a power supply and a display. | ||
few Tektronix plug-ins with fixed vertical gain. | The oscilloscope is operated in X-Y mode and gets its horizontal signal from the Type N plug-in instead of from the scope's sweep circuitry. | ||
can be placed in the signal path, external to the Type N, to achieve the | The input signal is applied through a 50 Ω [[GR-874 connector]]. | ||
desired sensitivity. | |||
pulse seen by the device under test. | The sampling circuit of the Type N is primitive. | ||
It uses a single diode, the "interrogate diode", D5480. | |||
The strobe pulse is added to the input signal using a passive summing circuit. | |||
Consequently, the amplitude of the kick-out pulse from the input is high, about 150 mV. | |||
The vertical scale of the Type N is fixed at 10 mV/cm, making Type N one of the few Tektronix plug-ins with fixed vertical gain. | |||
In practice, attenuators such as the [[017-011]] can be placed in the signal path, external to the Type N, to achieve the desired sensitivity. | |||
Using an input attenuator also has the effect of attenuating the kick-out pulse seen by the device under test. | |||
According to Stefan Graef (http://www.messmuseum.de/tek661.htm), | According to Stefan Graef (http://www.messmuseum.de/tek661.htm), | ||
<blockquote> | <blockquote> | ||
The engineer behind the N was Norm Winningstad. He worked at Hughes Aircraft Electronics Division and was offered a job at | The engineer behind the N was [[Norm Winningstad]]. | ||
He worked at Hughes Aircraft Electronics Division and was offered a job at HP's oscilloscope division to join their Sampling Scope team. | |||
After getting informed about the work he went to Tektronix developing the N (according to: "A narrative history of Hewlett-Packard from 1939-1990" by John Minck). | |||
</blockquote> | </blockquote> | ||
For calibration of the timebase of the Type N, the [[013-028|013-028 Timing Standard]] was produced. | For calibration of the timebase of the Type N, the [[013-028|013-028 Timing Standard]] was produced. | ||
Type N units with serial numbers from 101 to 220 | |||
did not come with a [[probe power]] connector on the front panel. | |||
* [ | A field modification kit was sold to add the probe power connector. | ||
* [ | After serial number 220, probe power was included from the factory. | ||
{{BeginSpecs}} | |||
{{Spec | Rise time | 600 ps }} | |||
{{Spec | Bandwidth | ~580 MHz }} | |||
{{Spec | Deflection | 10 mV/Div (fixed) }} | |||
{{EndSpecs}} | |||
==See Also== | |||
* [[X013-032]] | |||
* [[013-028]] Timing Standard | |||
==Pictures== | |||
<gallery> | <gallery> | ||
Type n front2.jpg | |||
Type n right.jpg | |||
Type n left.jpg | |||
Type n top.jpg | |||
Type n bottom2.jpg | |||
Type n bottom.jpg | |||
Type n rear.jpg | |||
Tek type n rg.jpg | |||
Type n vert.png|Vertical signal path schematic | |||
Tek n block.png|Block diagram | |||
Type n cal adaptor.JPG|Calibration adaptor | |||
Ge1961TunnelDiodeManual page83.jpg|Reference to Type N in 1961 General Electric Tunnel Diode Manual | |||
Tek 110 or 111 and type n diode measure.jpg | |||
</gallery> | </gallery> | ||
==Components== | |||
{{Parts|N}} | |||
[[Category:Sampling plugins]] | |||
[[Category:500 series plugins]] | |||
[[Category:GR874]] |