7B50A: Difference between revisions
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{{Plugin Sidebar | |||
|manufacturer=Tektronix | |||
|type=7B50A | |||
|summary=100 MHz timebase | |||
|image=Tek 7b50a.jpg | |||
|caption=7B50A front | |||
|introduced=1976 | |||
|discontinued=1988 | |||
|series=7000-series scopes | |||
|designers=Les Larson;Bruce Hofer;Paul Farley;Art Metz; | |||
|manuals= | |||
* [[Media:070-1986-00.pdf|Tektronix 7B50A Manual]] (OCR) | |||
}} | |||
The '''Tektronix 7B50A''' is a redesign of the 100 MHz [[7B50]] timebase plug-in for [[7000-series scopes]], [[introduced in 1976]]. | |||
[[Category: | [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 two fastest settings. | |||
</blockquote> | |||
{{BeginSpecs}} | |||
{{Spec | Sweep | 50 ns/Div to 5 s/Div (1–2–5), ×10 magnifier (down to 5 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 | Trigger | 50 mV or 0.3 Div up to 50 MHz, 250 mV or 1.5 Div up to 150 MHz; AC >30 Hz, LF REJ >30 kHz, HF REJ <50 kHz }} | |||
{{Spec | Jitter | <500 ps at 150 MHz }} | |||
{{Spec | Ext. Trigger | Max. 250 V DC+peak AC, 1 MΩ // 20 pF }} | |||
{{Spec | Sweep/Trigger Modes | Peak-Peak Auto, Auto, Norm, Single Sweep}} | |||
{{EndSpecs}} | |||
==X-Y operation== | |||
In the 7B50A, like in the 7B80, X-Y mode was an option (Opt.2). | |||
==Links== | |||
{{Documents|Link=7B50A}} | |||
{{PatentLinks|7B50}} | |||
==Pictures== | |||
<gallery> | |||
Tek 7b50a.jpg | 7B50A | |||
Tek 7b50a front2.jpg | 7B50A Opt.2 (X-Y) | |||
7B50A RHS.jpg | RHS | |||
7B50A opt 2 LHS.jpg | LHS with opt 2 | |||
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> | |||
==Components== | |||
{{Parts|7B50A}} | |||
[[Category:7000 series horizontal plugins]] |
Latest revision as of 11:45, 19 June 2024
The Tektronix 7B50A is a redesign of the 100 MHz 7B50 timebase plug-in for 7000-series scopes, introduced in 1976.
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 two fastest settings.
Key Specifications
Sweep | 50 ns/Div to 5 s/Div (1–2–5), ×10 magnifier (down to 5 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 150 MHz; AC >30 Hz, LF REJ >30 kHz, HF REJ <50 kHz |
Jitter | <500 ps at 150 MHz |
Ext. Trigger | Max. 250 V DC+peak AC, 1 MΩ // 20 pF |
Sweep/Trigger Modes | Peak-Peak Auto, Auto, Norm, Single Sweep |
X-Y operation
In the 7B50A, like in the 7B80, X-Y mode was an option (Opt.2).
Links
Documents Referencing 7B50A
- (no results)
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 | Cam switches • 2101 • 2701 • 2703 • 432 • 434 • 465 • 475 • 5A38 • 5A45 • 7A15 • 7A16A • 7A18 • 7A19 • 7A24 • 7A26 • 7B10 • 7B15 • 7B50 • 7B51 • 7B52 • 7B53A • 7B50A • 7B70 • 7B71 • 7B80 • 7B85 • 7B87 • 7B92 • 7B92A • 7D01 • 7D12 • 7D15 • 7J20 • 7S12 • 7T11 • 7T11A • AM503 |
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 | Back-lit switches • 7A11 • 7A12 • 7A13 • 7A14 • 7A16 • 7A16P • 7A22 • 7A42 • 7B42N • 7B50 • 7B51 • 7B52 • 7B53A • 7B70 • 7B71 • 7B92 • 7B92A • 7D10 • 7D11 • 7D12 • 7D114 • 7D15 • 7D20 • 7F10 • 7L5 • 7L12 • 7L13 • 7L14 • 7L18 • 7M13 • 7S11 • 7S12 • 7T11 • 067-0587-00 • 067-0587-01 • 067-0587-02 • 067-0587-10 |
Pictures
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7B50A
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7B50A Opt.2 (X-Y)
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RHS
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LHS with opt 2
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7B50A bottom
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7B50A rear
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7B50A Opt.2 top
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Components
Some Parts Used in the 7B50A
Part | Part Number(s) | Class | Description | Used in |
---|---|---|---|---|
155-0109-00 | 155-0109-00 • 155-0109-01 | Monolithic integrated circuit | trigger | 5B25N • 5B31 • 5B40 • 5B42 • 5B44 • 5S14N • 7B50A • 7B53A • 7B80 • 7B85 • 7B87 • 7B81P • 7B90P • 7S14 • 7612D • SC502 • SC503 • SC504 |
155-0126-00 | 155-0126-00 | Monolithic integrated circuit | trigger source selector and P-P auto amplifier | 7B50A • 7B80 • 7B85 • 7B87 • 7B81P • 7B90P |