7B50: Difference between revisions

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{{Plugin Sidebar 2|
{{Plugin Sidebar  
title=Tektronix 7B50|
|manufacturer=Tektronix
summary=100 MHz Timebase|
|type=7B50
image= 7b50-front.jpg|
|summary=100 MHz Timebase
caption=7B50 front |
|image=7b50-front.jpg
introduced=1969|
|caption=7B50 front  
discontinued=1988|
|introduced=1969
series=[[7000-series scopes]]|
|discontinued=1975
manuals=
|series=7000-series scopes
* [http://bama.edebris.com/download/tek/7b50/tek-7b50.pdf Tektronix 7B50 Manual (PDF)]
|designers=Murlan Kaufman
* [http://w140.com/smb/7b50_sm.pdf Tektronix 7B50 Manual (OCR, PDF)]
|manuals=
* [http://w140.com/smb/7b50a_sm.pdf Tektronix 7B50A Manual (OCR, PDF)]
* [[Media:070-0975-00.pdf|Tektronix 7B50 Manual]] (OCR)
}}
}}
The '''Tektronix 7B50''' is a timebase plug-in for [[7000-series scopes]],
The '''Tektronix 7B50''' is a timebase plug-in for [[7000-series scopes]], particularly the 7500 series, [[introduced in 1969]].
particularly the 7500 series.
It is specified for triggering up to 100 MHz. Triggering uses [[tunnel diodes]].  
It is specified for triggering up to 100 MHz.
The sweep is fully discrete, no ICs. It was replaced by the [[7B50A]] in 1976.
Triggering uses [[tunnel diodes]].
The sweep is fully discrete, no ICs.
There is a 7B50 and a 7B50A.


The task of designing the 7B50 was inherited and completed by [[Murlan Kaufman]].
The task of designing the 7B50 was inherited and completed by [[Murlan Kaufman]].


==Specifications==
{{BeginSpecs}}
[[Category:Specifications needed]] ''please add''
{{Spec | Sweep | 5 s/Div to 50 ns/Div in 1−2−5 sequence, ×10 magnifier down to 5 ns/Div, variable down to 12.5 s/Div}}
{{Spec | Excluded portions of sweep | None in 7700-series, first 50 ns with magnifier }}
{{Spec | Trigger sensitivity | 0.3 Div (int) or 150 mV (ext) up to 10 MHz, 1.5 Div or 750 mV from 10 MHz to 100 MHz }}
{{Spec | Trigger coupling | DC, AC (>16 Hz), AC HF REJ (16 Hz to 100 kHz), AC LF REJ (>75 kHz) }}
{{Spec | Trigger input | 1 MΩ // 20 pF max. 500 V DC+peak AC }}
{{Spec | Jitter | less than 1 ns at 75 MHz }}
{{Spec | Trigger Modes | Peak-Peak Auto, Auto, Norm, Single Sweep}}
{{Spec | External horizontal amplifier | 90 mV/Div or 900 mV/Div ranges, 10:1 variable}}
{{EndSpecs}}


==X-Y operation==
==X-Y operation==
The 7B50 has a dedicated switch to put it in "amplifier mode" for X-Y operation.   
The 7B50 has a dedicated switch to put it in "amplifier mode" for X-Y operation.   
In this mode, the Trigger Source switch controls the signal source – internal from a vertical plug-in via the trigger path, or external — and the Trigger Coupling switch controls AC vs. DC coupling.  
In this mode, the Trigger Source switch controls the signal source – internal from a vertical plug-in via the trigger path, or external — and the Trigger Coupling switch controls AC vs. DC coupling.  
In amplifier mode, gain can be varied using an uncalibrated potentiometer.
In amplifier mode, gain can be varied using an uncalibrated potentiometer.
==Links==
{{Documents|Link=7B50}}
{{PatentLinks|7B50}}


==Pictures==
==Pictures==
<gallery>
<gallery>
File:Tek 7b50.jpg|7B50
Tek 7b50.jpg|7B50
Tek 7b50a.jpg|7B50A
Tek 7b50a front2.jpg|7B50A
Tek 7b50a bottom2.jpg|7B50A bottom
Tek 7b50a rear2.jpg|7B50A rear
Tek 7b50a top2.jpg|7B50A top
Tek 7a17 7a18 7b50a model3 cart.jpg
Tek 7b50 front close.jpg|7B50
Tek 7b50 front close.jpg|7B50
Tek 7b50 34 close.jpg|7B50
Tek 7b50 34 close.jpg|7B50
</gallery>
</gallery>


[[Category:7000 series horizontal plugins]]
[[Category:7000 series horizontal plugins]]

Latest revision as of 10:44, 19 June 2024

Tektronix 7B50
100 MHz Timebase
7B50 front

Compatible with 7000-series scopes

Produced from 1969 to 1975

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 7B50 is a timebase plug-in for 7000-series scopes, particularly the 7500 series, introduced in 1969. It is specified for triggering up to 100 MHz. Triggering uses tunnel diodes. The sweep is fully discrete, no ICs. It was replaced by the 7B50A in 1976.

The task of designing the 7B50 was inherited and completed by Murlan Kaufman.

Key Specifications

Sweep 5 s/Div to 50 ns/Div in 1−2−5 sequence, ×10 magnifier down to 5 ns/Div, variable down to 12.5 s/Div
Excluded portions of sweep None in 7700-series, first 50 ns with magnifier
Trigger sensitivity 0.3 Div (int) or 150 mV (ext) up to 10 MHz, 1.5 Div or 750 mV from 10 MHz to 100 MHz
Trigger coupling DC, AC (>16 Hz), AC HF REJ (16 Hz to 100 kHz), AC LF REJ (>75 kHz)
Trigger input 1 MΩ // 20 pF max. 500 V DC+peak AC
Jitter less than 1 ns at 75 MHz
Trigger Modes Peak-Peak Auto, Auto, Norm, Single Sweep
External horizontal amplifier 90 mV/Div or 900 mV/Div ranges, 10:1 variable

X-Y operation

The 7B50 has a dedicated switch to put it in "amplifier mode" for X-Y operation. In this mode, the Trigger Source switch controls the signal source – internal from a vertical plug-in via the trigger path, or external — and the Trigger Coupling switch controls AC vs. DC coupling. In amplifier mode, gain can be varied using an uncalibrated potentiometer.

Links

Documents Referencing 7B50

Document Class Title Authors Year Links
Tekscope 1969 V1 N5 Oct 1969.pdf Article Introducing the New Generation 1969
Tekscope 1969 V1 N6 Dec 1969.pdf Article A New Logic for Oscilloscope Displays 1969
7000 series brochure March 1973.pdf Brochure 7000 series brochure, March 1973 1973

Patents that may apply to 7B50

Page Title Inventors Filing date Grant date Links
Patent US 3562464A Cam actuated switch having movable and fixed contacts on circuit board Howard Vollum Willem H Verhoef Tony Sprando 1968-10-07 1971-02-09
Patent US 3584174A Push-button switch apparatus having cam actuated switch contacts and selective illumination means Tony Sprando Peter S Winkelmann 1969-06-09 1971-06-08

Pictures