7B80: Difference between revisions
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{{Plugin Sidebar | {{Plugin Sidebar | | ||
manufacturer=Tektronix | type=7B80 | | |manufacturer=Tektronix | ||
summary=400 MHz Timebase | | |type=7B80 | ||
image=Tek 7b80 front.jpg | | |summary=400 MHz Timebase | ||
caption=Tektronix 7B80 Timebase plug-in with Option 2| | |image=Tek 7b80 front.jpg | ||
introduced=1976 | | |caption=Tektronix 7B80 Timebase plug-in with Option 2 | ||
discontinued=1990 | | |introduced=1976 | ||
series=7000-series scopes| | |discontinued=1990 | ||
manuals= | |series=7000-series scopes | ||
designers= | |||
|manuals= | |||
* [http://w140.com/smb/7b80_sm.pdf Tektronix 7B80 Manual (OCR, PDF)] | * [http://w140.com/smb/7b80_sm.pdf Tektronix 7B80 Manual (OCR, PDF)] | ||
}} | }} | ||
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. | ||
Revision as of 08:30, 13 August 2021
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 |
Pictures
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Front
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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
