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The Tektronix Type N is a sampling plug-in [[introduced in 1960]]
{{Plugin Sidebar 2|
for [[500-series scopes]]. It is the first sampler produced by Tektronix.
title=Tektronix N|
The risetime is specified to be
summary=Sampling system plug-in|
under 600 picoseconds. The Type N is a complete sampling subsystem,
image=Type n front2.jpg |
using the 500-series oscilloscope just as a power supply and a display. The oscilloscope
caption=Type N front view|
is operated in X-Y mode and gets its horizontal signal from the Type N plug-in instead of
introduced=1960 |
from the scope's sweep circuitry.   The input connector is a 50-ohm GR-874.
discontinued=1964 |
The Type N was followed by the [[661]] a year later.
series=[[500-series scopes]]|
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)]]
}}
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Type N was [[introduced in 1960]], superseded by the [[661|Type 661]] Sampling Oscilloscope system a year later,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 manual (without schematics) is here:
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]].


* http://bama.edebris.com/manuals/tek/n
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 schematics are here:
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.


* http://w140.com/tektronix_type_n_schematics.pdf
According to Stefan Graef (http://www.messmuseum.de/tek661.htm),
<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)
</blockquote>


Factory Calibration procedure:
For calibration of the timebase of the Type N, the [[013-028|013-028 Timing Standard]] was produced.


* http://w140.com/tek_fcp/tek_type_n_factory_cal_proc.pdf
==Specifications==
* Rise time: 600 ps  (Bandwidth ~580 MHz)
* Deflection:  10 mV/Div (fixed)


==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
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>
[[Category:Sampling plugins]]
[[Category:500 series plugins]]
[[Category:GR874]]

Revision as of 16:52, 14 October 2018

Template:Plugin Sidebar 2 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.

Specifications

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

Pictures