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The Tektronix Type N is a [[sampling_oscilloscope|sampling]] plug-in for [[500-series scopes]]. It was the first sampler produced by Tektronix.
{{Plugin Sidebar
The risetime is specified to be  
|manufacturer=Tektronix
under 600 picoseconds.  The Type N is a complete sampling subsystem,
|series=500-series scopes
using the 500-series oscilloscope just as a power supply and a display. The oscilloscope
|type=Type N
is operated in X-Y mode and gets its horizontal signal from the Type N plug-in instead of
|summary=Sampling system plug-in
from the scope's sweep circuitry.   The input connector is a 50-ohm
|image=Type n front2.jpg
[[Connectors#GR-874|GR-874]].
|caption=Type N front view
The Type N was [[introduced in 1960]], superseded by the Type [[661]] Sampling Oscilloscope system a year later,
|introduced=1960
and discontinued in 1964, making it the shortest-lived plug-in.
|discontinued=1964
|designers=Norm Winningstad
|manuals=
* [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 without schematics (BAMA, offline?)]
* [http://w140.com/tektronix_type_n_schematics.pdf Tektronix Type N Schematics (PDF)]
<!-- * [http://w140.com/tek_fcp/tek_type_n_factory_cal_proc.pdf Tektronix Type N Factory Calibration Procedure (PDF)] -->
<!-- * [[Media:070-209.pdf|Tektronix Type N Manual Complete (PDF, OCR)]] -->
* [[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)]] -->
* [[Media:tek_type_n_fcp.pdf|Tektronix Type N Factory Calibration Procedure (PDF, OCR)]]
* [[Media:Tektronix Type N Movie Notes.pdf|Transcript of "Sampling Oscilloscopes and Techniques" Training Film by Norm Winningstad (PDF)]]
* [[Media:Tek type n cal outline.pdf|Tektronix Type N Calibration Outline (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Type N was [[introduced in 1960]], superseded by the [[661|Type 661]] Sampling Oscilloscope system a year later, and discontinued in 1964.
 
Type N is a complete sampling subsystem, using the 500-series oscilloscope just as a power supply and a display.
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.
The input signal is applied through a 50 Ω [[GR-874 connector]].


The sampling circuit of the Type N is primitive. It uses a single diode,
The sampling circuit of the Type N is primitive.
the "interrogate diode", D5480. The strobe pulse is added to the input
It uses a single diode, the "interrogate diode", D5480.
signal using a passive summing circuit. Consequently, the amplitude of
The strobe pulse is added to the input signal using a passive summing circuit.
the kick-out pulse from the input is high, about 150mV.
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 10mV/cm.  The Type N is one of the
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.
few Tektronix plug-ins with fixed vertical gain. In practice, attenuators
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.
can be placed in the signal path, external to the Type N, to achieve the
Using an input attenuator also has the effect of attenuating the kick-out pulse seen by the device under test.  
desired sensitivity. This 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 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)
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.


* [http://bama.edebris.com/manuals/tek/n Tektronix Type N Manual without schematics (BAMA)]
{{BeginSpecs}}
* [http://w140.com/tektronix_type_n_schematics.pdf Tektronix Type N Schematics (PDF)]
{{Spec | Rise time | 600 ps }}
* [http://w140.com/tek_fcp/tek_type_n_factory_cal_proc.pdf Tektronix Type N Factory Calibration Procedure (PDF)]
{{Spec | Bandwidth | ~580 MHz }}
* [http://w140.com/tek_type_n.pdf Tektronix Type N Manual Complete (PDF)]
{{Spec | Deflection |  10 mV/Div (fixed) }}
{{EndSpecs}}
 
==See Also==
* [[X013-032]]
* [[013-028]] Timing Standard


==Pictures==
<gallery>
<gallery>
Image:Type n front2.jpg
Type n front2.jpg
Image:Type n right.jpg
Type n right.jpg
Image:Type n left.jpg
Type n left.jpg
Image:Type n top.jpg
Type n top.jpg
Image:Type n bottom2.jpg
Type n bottom2.jpg
Image:Type n bottom.jpg
Type n bottom.jpg
Image:Type n rear.jpg
Type n rear.jpg
Image:Tek type n rg.jpg
Tek type n rg.jpg
Image:Type n vert.png|Vertical signal path schematic
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>
[[Category:Sampling plugins]]
[[Category:500 series plugins]]
[[Category:GR874]]

Revision as of 10:05, 13 August 2021

Manuals – Specifications – Links – Pictures

The Tektronix Type N is a 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 Type 661 Sampling Oscilloscope system a year later, and discontinued in 1964.

Type N is a complete sampling subsystem, using the 500-series oscilloscope just as a power supply and a display. 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. The input signal is applied through a 50 Ω GR-874 connector.

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),

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)

For calibration of the timebase of the Type N, the 013-028 Timing Standard was produced.

Key Specifications

Rise time 600 ps
Bandwidth ~580 MHz
Deflection 10 mV/Div (fixed)

See Also

Pictures