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{{Plugin Sidebar 2|
{{Plugin Sidebar  
title=Tektronix N|
|manufacturer=Tektronix
summary=Sampling system plug-in|
|series=500-series scopes
image=Type n front2.jpg |  
|type=Type N
caption=Type N front view|
|summary=Sampling system plug-in
introduced=1960 |
|image=Tek n front.jpeg
discontinued=1964 |
|caption=Type N front view
series=[[500-series scopes]]|
|introduced=1960  
manuals=
|discontinued=1964  
* [http://w140.com/tek_type_n.pdf Tektronix Type N Manual Complete (PDF)]
|designers=Norm Winningstad
* [http://bama.edebris.com/manuals/tek/n Tektronix Type N Manual without schematics (BAMA, offline?)]
|manuals=
* [http://w140.com/tektronix_type_n_schematics.pdf Tektronix Type N Schematics (PDF)]
* [[Media:070-209.pdf|Tektronix Type N Manual Complete]] (OCR)
* [http://w140.com/tek_fcp/tek_type_n_factory_cal_proc.pdf Tektronix Type N Factory Calibration Procedure (PDF)]
* [[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.   
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.   
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Type N was [[introduced in 1960]], superseded by the [[661|Type 661]] Sampling Oscilloscope system a year later,
Type N was [[introduced in 1960]], superseded by the [[661|Type 661]] Sampling Oscilloscope system a year later, and discontinued in 1964.
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  
Type N is a complete sampling subsystem, using the 500-series oscilloscope just as a power supply and a display.
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
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.
is applied through a 50 Ω [[GR-874 connector]].
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  
The sampling circuit of the Type N is primitive.
input signal using a passive summing circuit. Consequently, the amplitude of the kick-out pulse from the input is high, about 150 mV.
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,  
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.
attenuators can be placed in the signal path, external to the Type N, to achieve the desired sensitivity. Using an input attenuator also has  
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.
the effect of attenuating the kick-out pulse seen by the device under test.  
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 HP's  
The engineer behind the N was [[Norm Winningstad]].
oscilloscope division to join their Sampling Scope team. After getting informed about the work he went to Tektronix developing the N  
He worked at Hughes Aircraft Electronics Division and was offered a job at HP's oscilloscope division to join their Sampling Scope team.
(according to: "A narrative history of Hewlett-Packard from 1939-1990" by John Minck)
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.


==Specifications==
Type N units with serial numbers from 101 to 220
* Rise time: 600 ps   (Bandwidth ~580 MHz)
did not come with a [[probe power]] connector on the front panel.
* Deflection: 10 mV/Div (fixed)
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==
==Pictures==
Line 57: Line 78:
Type n cal adaptor.JPG|Calibration adaptor
Type n cal adaptor.JPG|Calibration adaptor
Ge1961TunnelDiodeManual page83.jpg|Reference to Type N in 1961 General Electric Tunnel Diode Manual
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:Sampling plugins]]
[[Category:500 series plugins]]
[[Category:500 series plugins]]
[[Category:GR874]]

Latest revision as of 08:19, 6 December 2023

Tektronix Type N
Sampling system plug-in
Type N front view

Compatible with 500-series scopes

Produced from 1960 to 1964

Manuals
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.

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.

Key Specifications

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

See Also

Pictures

Components

Some Parts Used in the N

Part Part Number(s) Class Description Used in
12AL5 154-0038-00 Vacuum Tube (Double Diode) high-perveance dual diode 3A2 3B2 545 545A 549 N
12AT7 154-0039-00 Vacuum Tube (Dual Triode) dual high-gain triode 161 180 310 310A 315 316 360 502 502A 511A 512 513 513D 514 514AD 514D 516 524 529 RM529 544 546 547 556 565 570 3A2 75 3A75 1M1 A B C G H K L ML M N K R S Z
12AU6 154-0040-00 Vacuum Tube (Pentode) RF pentode 81 112 1L10 1L20 1L60 3L10 512 556 575 545 547 549 581 585 A B C G K H L ML M N O R S Z
12AU7 154-041 154-0041-00 154-0287-00 Vacuum Tube (Dual Triode) dual medium-μ triode 104 104A 122 160 161 162 181 190 310 310A 316 317 3C66 502 502A 507 511A 512 516 517 517A 524 526 535 536 545 545A 545B 547 549 555 561 564 570 575 581 581A 585 585A C D E N Q Hickok 1825
6AN8 154-078 154-0078-00 Vacuum Tube (Triode/Pentode) triode-pentode combo 310 310A 316 317 360 502 502A 516 517 517A 526 565 570 575 N