7B80: Difference between revisions
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{{Plugin Sidebar | {{Plugin Sidebar | ||
|manufacturer=Tektronix | |||
summary=400 MHz Timebase | | |series=7000-series scopes | ||
image=Tek 7b80 front.jpg | | |type=7B80 | ||
caption=Tektronix 7B80 Timebase plug-in with Option 2| | |summary=400 MHz Timebase | ||
introduced=1976 | | |image=Tek 7b80 front.jpg | ||
discontinued=1990 | | |caption=Tektronix 7B80 Timebase plug-in with Option 2 | ||
|introduced=1976 | |||
|discontinued=1990 | |||
* [ | |designers=Les Larson;Bruce Hofer;Paul Farley;Art Metz; | ||
|manuals= | |||
* [[Media:070-1958-00.pdf|Tektronix 7B80 Operator's Manual]] (OCR) | |||
* [[Media:070-1959-00.pdf|Tektronix 7B80 Instruction Manual]] (OCR) | |||
}} | }} | ||
The '''Tektronix 7B80''' is a 400 MHz single time base plug-in without delay function for [[7000-series scopes]], typically the 7800 Series, e.g. [[7844]]. | |||
The '''Tektronix 7B80''' is a 400 MHz single time base plug-in without delay function for [[7000-series scopes]], | |||
typically the 7800 Series, e.g. [[7844]]. | |||
It uses the [[155-0126-00]] trigger amplifier followed by the [[155-0109-01]] trigger detector. | It uses the [[155-0126-00]] trigger amplifier followed by the [[155-0109-01]] trigger detector. | ||
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The companion delaying timebase for use in 4-slot mainframes is the [[7B85]]. | The companion delaying timebase for use in 4-slot mainframes is the [[7B85]]. | ||
The 7B80 uses the ±50 V supplies from the mainframe. | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Sweep | 10 ns/Div to 5 s/Div ( | {{Spec | Sweep | 10 ns/Div to 5 s/Div (1–2–5), ×10 magnifier (down to 1 ns/Div), variable sweep (up to ×2.5) and holdoff (up to ×2 sweep lengths at 20 ms/Div and faster)}} | ||
{{Spec | Excluded sweep | First 10 ns in 78xx, 79xx; First 20 ns in 77xx; First 50 ns in other mainframes }} | {{Spec | Excluded sweep | First 10 ns in 78xx, 79xx; First 20 ns in 77xx; First 50 ns in other mainframes }} | ||
{{Spec | Trigger | 50 mV or 0.3 Div up to 50 MHz, 250 mV or 1.5 Div up to 400 MHz; AC >30 Hz, LF REJ >30 kHz, HF REJ <50 kHz }} | {{Spec | Trigger | 50 mV or 0.3 Div up to 50 MHz, 250 mV or 1.5 Div up to 400 MHz; AC >30 Hz, LF REJ >30 kHz, HF REJ <50 kHz }} | ||
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{{Spec | Sweep/Trigger Modes | Peak-Peak Auto, Auto, Norm, Single Sweep}} | {{Spec | Sweep/Trigger Modes | Peak-Peak Auto, Auto, Norm, Single Sweep}} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==Links== | |||
* [https://www.youtube.com/watch?v=EbSQ-C5PYbY Zenwizard Studios - Tektronix 7B80 Lab Check in and Calibration] | |||
==Prices== | |||
{| class="wikitable" | |||
|- | |||
! Year | |||
! 1977 | |||
! 1980 | |||
! 1984 | |||
! 1987 | |||
! 1990 | |||
|- | |||
! Catalog price | |||
|align=right| $745 | |||
|align=right| $1,000 | |||
|align=right| $1,485 | |||
|align=right| $1,660 | |||
|align=right| $2,080 | |||
|- | |||
! In 2021 Dollars | |||
|align=right| $3,400 | |||
|align=right| $3,400 | |||
|align=right| $4,000 | |||
|align=right| $4,000 | |||
|align=right| $4,400 | |||
|- | |||
|} | |||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
Tek 7b80 front.jpg | Front | Tek 7b80 front.jpg | Front (with Opt.2 X-Y mode switch) | ||
7b80-opt2-left.jpg | 7B80 Opt.2, left side | 7b80-opt2-left.jpg | 7B80 Opt.2, left side | ||
7b80-opt2-left--xy-removed.jpg | 7B80 Opt.2, left side, X-Y switch board removed | 7b80-opt2-left--xy-removed.jpg | 7B80 Opt.2, left side, X-Y switch board removed | ||
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7b80 rear.jpg | Rear | 7b80 rear.jpg | Rear | ||
</gallery> | </gallery> | ||
==Modifications== | |||
The 7B80MODWJ is a 7B80 timebase having various controls removed | |||
<gallery> | |||
Tek_7B80_modwj.jpg | 7B80MODWJ Front view | |||
Tek_7B80_MODWJ_2.jpg | 7B80MODWJ Top view | |||
</gallery> | |||
{{Custom ICs|7B80}} | |||
[[Category:7000 series horizontal plugins]] | [[Category:7000 series horizontal plugins]] | ||
[[Category:Specifications needed]] | [[Category:Specifications needed]] |
Revision as of 06:50, 10 July 2022
The Tektronix 7B80 is a 400 MHz single time base plug-in without delay function for 7000-series scopes, typically the 7800 Series, e.g. 7844. It uses the 155-0126-00 trigger amplifier followed by the 155-0109-01 trigger detector.
Option 2 adds support for X-Y mode via a "Display mode" switch (pictured). When X-Y mode is selected, the X-axis signal is taken from the internal trigger path.
The companion delaying timebase for use in 4-slot mainframes is the 7B85.
The 7B80 uses the ±50 V supplies from the mainframe.
Key Specifications
Sweep | 10 ns/Div to 5 s/Div (1–2–5), ×10 magnifier (down to 1 ns/Div), variable sweep (up to ×2.5) and holdoff (up to ×2 sweep lengths at 20 ms/Div and faster) |
---|---|
Excluded sweep | First 10 ns in 78xx, 79xx; First 20 ns in 77xx; First 50 ns in other mainframes |
Trigger | 50 mV or 0.3 Div up to 50 MHz, 250 mV or 1.5 Div up to 400 MHz; AC >30 Hz, LF REJ >30 kHz, HF REJ <50 kHz |
Jitter | <100 ps at 400 MHz |
Ext. Trigger | Max. 250 V DC+peak AC, 1 MΩ // 20 pF |
Sweep/Trigger Modes | Peak-Peak Auto, Auto, Norm, Single Sweep |
Links
Prices
Year | 1977 | 1980 | 1984 | 1987 | 1990 |
---|---|---|---|---|---|
Catalog price | $745 | $1,000 | $1,485 | $1,660 | $2,080 |
In 2021 Dollars | $3,400 | $3,400 | $4,000 | $4,000 | $4,400 |
Pictures
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Front (with Opt.2 X-Y mode switch)
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7B80 Opt.2, left side
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7B80 Opt.2, left side, X-Y switch board removed
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7B80 Opt.2, X-Y switch board, top
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7B80 Opt.2, X-Y switch board, bottom
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7B80, right side
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Right front
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Right rear
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Left front
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Left rear
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Top
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Rear
Modifications
The 7B80MODWJ is a 7B80 timebase having various controls removed
-
7B80MODWJ Front view
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7B80MODWJ Top view
Custom ICs used in the 7B80
Page | Model | Part nos | Description | Designers | Used in |
---|---|---|---|---|---|
155-0049-00 | M079G | 155-0049-00 • 155-0049-01 • 155-0049-02 | sweep control with lockout | Bill DeVey | 335 • 464 • 465 • 466 • 475 • 475A • 475M • 485 • 5B31 • 5B40 • 5B52 • 5B42 • 5B44 • 7B53A • 7B80 • 7B85 • 7B87 • 7B92A • 7B90P • 7B10 • 7B15 • SC502 • 7B42N • AN/USM-281C • 067-0657-00 |
155-0109-00 | M120B | 155-0109-00 • 155-0109-01 | trigger | Gary Vance | 5B25N • 5B31 • 5B40 • 5B42 • 5B44 • 5S14N • 7B50A • 7B53A • 7B80 • 7B85 • 7B87 • 7B81P • 7B90P • 7S14 • 7612D • SC502 • SC503 • SC504 |
155-0126-00 | M121 | 155-0126-00 | trigger source selector and P-P auto amplifier | Art Metz | 7B50A • 7B80 • 7B85 • 7B87 • 7B81P • 7B90P |