Difference between revisions of "N"

From TekWiki
Jump to: navigation, search
m (Move intro tag)
 
(25 intermediate revisions by 4 users not shown)
Line 1: Line 1:
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 2|
The risetime is specified to be  
+
title=Tektronix N|
under 600 picoseconds.  The Type N is a complete sampling subsystem,
+
summary=Sampling system plug-in|
using the 500-series oscilloscope just as a power supply and a display. The oscilloscope
+
image=Type n front2.jpg |
is operated in X-Y mode and gets its horizontal signal from the Type N plug-in instead of
+
caption=Type N front view|
from the scope's sweep circuitry.   The input connector is a 50-ohm
+
introduced=1960 |
[[Connectors#GR-874|GR-874]].
+
discontinued=1964 |
The Type N was [[introduced in 1960]], superseded by the Type [[661]] Sampling Oscilloscope system a year later,
+
series=[[500-series scopes]]|
and discontinued in 1964, making it the shortest-lived plug-in.
+
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Type N was [[introduced in 1960]], superseded by the [[661|Type 661]] Sampling Oscilloscope system a year later,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.
 +
 
 +
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 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 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),
 +
<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>
  
 
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)]
+
==Specifications==
* [http://w140.com/tektronix_type_n_schematics.pdf Tektronix Type N Schematics (PDF)]
+
* Rise time: 600 ps  (Bandwidth ~580 MHz)
* [http://w140.com/tek_fcp/tek_type_n_factory_cal_proc.pdf Tektronix Type N Factory Calibration Procedure (PDF)]
+
* Deflection: 10 mV/Div (fixed)
* [http://w140.com/tek_type_n.pdf Tektronix Type N Manual Complete (PDF)]
 
  
 +
==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:Type n vert.png|Vertical signal path schematic
+
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]]

Latest revision as of 16:52, 14 October 2018

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.

Specifications

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

Pictures