7B50: Difference between revisions

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|caption=7B50 front  
|caption=7B50 front  
|introduced=1969
|introduced=1969
|discontinued=1988
|discontinued=1975
|series=7000-series scopes
|series=7000-series scopes
|designers=Murlan Kaufman
|designers=Murlan Kaufman
|manuals=
|manuals=
'''7B50'''
* [[Media:070-0975-00.pdf|Tektronix 7B50 Manual]] (OCR)
* [[Media:070-0975-00.pdf|Tektronix 7B50 Manual]] (OCR)
'''7B50A'''
* [[Media:070-1986-00.pdf|Tektronix 7B50A Manual]] (OCR)
}}
}}
The '''Tektronix 7B50''' is a timebase plug-in for [[7000-series scopes]], particularly the 7500 series, [[introduced in 1969]].
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]].  
It is specified for triggering up to 100 MHz. Triggering uses [[tunnel diodes]].  
The sweep is fully discrete, no ICs.
The sweep is fully discrete, no ICs. It was replaced by the [[7B50A]] in 1976.
 
There is also a 7B50A, introduced in 1976.
[https://vintagetek.org/years-at-tektronix-hofer/ According to Bruce Hofer],
<blockquote>
The 7B50A was nothing more than a [[7B80]] with its fastest calibrated sweep rate limited to 5 nS/div via a modified cam-switch that locked out the 2 fastest settings.
</blockquote>


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]].
Line 34: Line 25:
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.
In the 7B50A, like in the 7B80, X-Y mode was an option (Opt.2).


==Pictures==
==Pictures==


'''7B50'''
<gallery>
<gallery>
Tek 7b50.jpg|7B50
Tek 7b50.jpg|7B50
Line 45: Line 33:
Tek 7b50 34 close.jpg|7B50
Tek 7b50 34 close.jpg|7B50
</gallery>
</gallery>
'''7B50A'''
<gallery>
Tek 7b50a.jpg|7B50A
Tek 7b50a front2.jpg|7B50A Opt.2 (X-Y)
Tek 7b50a bottom2.jpg|7B50A bottom
Tek 7b50a rear2.jpg|7B50A rear
Tek 7b50a top2.jpg|7B50A Opt.2 top
Tek 7a17 7a18 7b50a model3 cart.jpg
</gallery>
{{Custom ICs|7B50}}
{{Custom ICs|7B50A}}






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

Revision as of 01:07, 10 January 2023

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

  • please add

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.

Pictures

  • 7B50

    7B50

  • 7B50

    7B50

  • 7B50

    7B50

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