7B15: Difference between revisions

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{{Plugin Sidebar 2 |
{{Plugin Sidebar
manufacturer=Tektronix | type=7B15|
|manufacturer=Tektronix  
summary=1 GHz Delaying Timebase|
|type=7B15
image=7b15-front.jpg |  
|summary=1 GHz delaying timebase
caption=7B15|
|image=7b15-front.jpg  
introduced=1978 |
|caption=7B15
discontinued=1990 |
|introduced=1978  
series=7000-series scopes|
|discontinued=1990  
manuals=
|series=7000-series scopes
* [http://bama.edebris.com/download/tek/7b15/tek-7b15.pdf Tektronix 7B15 Manual (PDF)]
|designers=Art Metz;Bruce Hofer;Val Garuts
* [http://w140.com/smb/7b15_sm.pdf Tektronix 7B15 Manual (OCR, PDF)]
|manuals=
* [[Media:070-2319-00.pdf|7B15 Operator's Manual]] (OCR)
* [[Media:070-2318-00.pdf|7B15 Instruction Manual]] (OCR)  
}}
}}
The '''Tektronix 7B15''' is a 1 GHz delaying time base for [[7000-series scopes]], in particular, the 1 GHz [[7104]] (typically used with [[7A29]] vertical amplifiers and a [[7B10]] delayed time base).
The '''Tektronix 7B15''' is a 1 GHz delaying time base for [[7000-series scopes]], in particular, the 1 GHz [[7104]] (typically used with [[7A29]] vertical amplifiers and a [[7B10]] delayed time base).


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{{BeginSpecs}}
{{BeginSpecs}}
{{Spec | Sweep | 200 ms/Div to 2 ns/Div in 1-2-5 sequence, ×10 magnifier down to 200 ps/Div, variable to ×2.5}}
{{Spec | Sweep | 200 ms/Div to 2 ns/Div in 1−2−5 sequence, ×10 magnifier down to 200 ps/Div, variable to ×2.5}}
{{Spec | Triggering | to 1 GHz }}
{{Spec | Triggering | to 1 GHz }}
{{Spec | Jitter | less than 30 ps at 1 GHz }}
{{Spec | Jitter | less than 30 ps at 1 GHz }}
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}}
}}
{{EndSpecs}}
{{EndSpecs}}
==Links==
* [[Patent US 4109182A]]
{{Documents|Link=7B15}}
{{PatentLinks|7B15}}


==Internals==
==Internals==
A ramp generator is started when the trigger signal arrives.  The delayed sweep is started when a  
A ramp generator is started when the trigger signal arrives.   
comparator detects that the ramp has reached a control voltage, set by the front panel knobs.
The delayed sweep is started when a comparator detects that the ramp has reached a control voltage, set by the front panel knobs.
The control voltage is therefore proportional to the amount of delay and is measured using a  
The control voltage is therefore proportional to the amount of delay and is measured using a [[155-0185-00]] 4-digit DVM circuit,  
[[155-0185-00]] 4-digit DVM circuit, then displayed on the [[7000 series readout system|oscilloscope readout]].
then displayed on the [[7000 series readout system|oscilloscope readout]].
The display, scaled in seconds, provides the operator with a precise readout of the delay.
The display, scaled in seconds, provides the operator with a precise readout of the delay.


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The 7B15 uses the +50 V supply provided by the mainframe.
The 7B15 uses the +50 V supply provided by the mainframe.
==Prices==
<!-- http://www.usinflationcalculator.com/ -->
{| class="wikitable"
|-
! Year
! 1980
! 1985
! 1990
|-
! Catalog price
|align=right| $1,695
|align=right| $2,695
|align=right| $3,300
|-
! In 2023 Dollars
|align=right| $6,300
|align=right| $7,700
|align=right| $7,800
|-
|}
==Pictures==
==Pictures==


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</gallery>
</gallery>


==Components==
{{Parts|7B15}}


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

Revision as of 10:34, 19 June 2024

Tektronix 7B15
1 GHz delaying timebase
7B15

Compatible with 7000-series scopes

Produced from 1978 to 1990

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 7B15 is a 1 GHz delaying time base for 7000-series scopes, in particular, the 1 GHz 7104 (typically used with 7A29 vertical amplifiers and a 7B10 delayed time base).

The 7B15 provides digital readout of delay and delta times. In effect, the 7B15/7B10 pair are speed-improved versions of the 7B85/7B80.

Key Specifications

Sweep 200 ms/Div to 2 ns/Div in 1−2−5 sequence, ×10 magnifier down to 200 ps/Div, variable to ×2.5
Triggering to 1 GHz
Jitter less than 30 ps at 1 GHz
Features
  • Digital read-out of delay and delta times
  • Variable Trigger Holdoff
  • HF Sync mode

Links

Documents Referencing 7B15

Document Class Title Authors Year Links
Technology Report October 1979.pdf Article Patent Received: 4,109,182 Simultaneous Delayed Sweep Display Oliver Dalton 1979 Patent US 4109182A • 7B80 • 7B85 • 7B10 • 7B15
Tekscope 1979 V11 N1.pdf Article 1 GHz at 1 mV in a General Purpose Plug-in Oscilloscope Hans Springer 1979 7104 • Hypcon • SHFIII • 7A29 • 7B10 • 7B15

Patents that may apply to 7B15

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 • 5A15N • 5A18N • 5A20N • 5A21N • 5A38 • 5A45 • 5B10N • 5B12N • 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 • AF501 • AM502 • AM503 • DC502 • DC503 • DC504 • DC505 • DM501 • DM502 • FG501 • FG501A • FG502 • FG503 • FG504 • FG507 • PG501 • PG502 • PG505 • PG506 • PG506A • PG508 • TG501 • SC502 • SC503 • SC504
Patent US 4013855A Modular pushbutton switch John E. Reichen • Richard Neff Meyer • Gary W. Reed 1975-03-17 1977-03-22 CP501 • 7B10 • 7B15 • 7B50A • 7B80 • 7B85 • 7B87
Patent US 4109182A Delayed sweep system for an oscilloscope Oliver Dalton 1976-03-10 1978-08-22 7B80 • 7B85 • 7B10 • 7B15

Internals

A ramp generator is started when the trigger signal arrives. The delayed sweep is started when a comparator detects that the ramp has reached a control voltage, set by the front panel knobs. The control voltage is therefore proportional to the amount of delay and is measured using a 155-0185-00 4-digit DVM circuit, then displayed on the oscilloscope readout. The display, scaled in seconds, provides the operator with a precise readout of the delay.

Other custom Tek ICs used: 155-0150-00 trigger detector, 155-0160-00 trigger amplifier.

The 7B15 uses the +50 V supply provided by the mainframe.

Prices

Year 1980 1985 1990
Catalog price $1,695 $2,695 $3,300
In 2023 Dollars $6,300 $7,700 $7,800

Pictures

  • 7B15 front panel

    7B15 front panel

  • left side

    left side

  • right side

    right side

  • Family resemblance: 7B15 (top) vs. 7B85 (bottom). Left side.

    Family resemblance: 7B15 (top) vs. 7B85 (bottom). Left side.

  • Family resemblance: 7B15 (top) vs. 7B85 (bottom). Right side.

    Family resemblance: 7B15 (top) vs. 7B85 (bottom). Right side.

Components

Some Parts Used in the 7B15

Part Part Number(s) Class Description Used in
151-1036-00 151-1036-00 Discrete component dual n-channel JFET 4701 • 7B15
155-0049-00 155-0049-00 • 155-0049-01 • 155-0049-02 Monolithic integrated circuit sweep control with lockout 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
155-0149-00 155-0149-00 Monolithic integrated circuit sweep control 7B10 • 7B15
155-0150-00 155-0150-00 Hybrid integrated circuit trigger detector 7904A • 7104 • 7B10 • 7B15 • 7B92A • SCD1000
155-0160-00 155-0160-00 Monolithic integrated circuit 1.5 GHz trigger amplifier and source select 7B10 • 7B15 • 067-0587-02 • 067-0587-10
155-0185-00 155-0185-00 Monolithic integrated circuit four-digit counter, latch and D/A converter/DVM 7B15 • 7B85 • 7B87
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