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7B80: Difference between revisions
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Designers added from Tekscope v.8 n.1
(New page: * [http://w140.com/smb/7b80_sm.pdf Tektronix 7B80 Manual (PDF)]) |
(Designers added from Tekscope v.8 n.1) |
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* [ | {{Plugin Sidebar | ||
|manufacturer=Tektronix | |||
|series=7000-series scopes | |||
|type=7B80 | |||
|summary=400 MHz Timebase | |||
|image=Tek 7b80 front.jpg | |||
|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]]. | |||
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. | |||
{{BeginSpecs}} | |||
{{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 | 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 | Jitter | <100 ps at 400 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}} | |||
==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== | |||
<gallery> | |||
Tek 7b80 front.jpg | Front (with Opt.2 X-Y mode switch) | |||
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-xy-top.jpg | 7B80 Opt.2, X-Y switch board, top | |||
7b80-opt2-xy-bot.jpg | 7B80 Opt.2, X-Y switch board, bottom | |||
7b80-right.jpg | 7B80, right side | |||
7b80 right front.jpg | Right front | |||
7b80 right rear.jpg | Right rear | |||
7b80 left front.jpg | Left front | |||
7b80 left rear.jpg | Left rear | |||
7b80 top.jpg | Top | |||
7b80 rear.jpg | Rear | |||
</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:Specifications needed]] | |||