7M11: Difference between revisions

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{{Plugin Sidebar 2 |
{{Plugin Sidebar  
title=Tektronix 7M11 |
|manufacturer=Tektronix
summary=Dual Delay Line |
|series=7000-series scopes
image=Tek-7m11-front.jpg |  
|type=7M11
caption=7M11 front panel |
|summary=Dual Delay Line
introduced=1970 |
|image=Tek-7m11-front.jpg
discontinued=1988 |
|caption=7M11 front panel
series=[[7000-series scopes]]|
|introduced=1969
manuals=
|discontinued=1988
* [[Media:7M11-Instruction-OCR.pdf|7M11 Manual]] (OCR PDF, 2.5MB)
|manuals=
* [[Media:070-0987-00.pdf|7M11 Manual]] (OCR PDF, 2.5MB)
}}
}}
The '''Tektronix 7M11''' is a plug-in which contains two independent 50 Ω, 75 ns analog delay lines with [[GR-874 connector]]s. Rise time is specified as 175 ps maximum, and attenuation is fixed at 2:1.


The '''Tektronix 7M11''' is a plug-in which contains two independent 50 Ω analog delay lines with 75 ns each.
To eliminate an external power splitter, a separate trigger output is available through a [[BNC connector]] at 5:1 attenuation (line 1 or 2 switch selectable).
Rise time is specified as 175 ps maximum, and attenuation is fixed at 2:1.
 
Delay line connections are 50 Ω [[GR-874]].


To eliminate an external power splitter, a separate trigger output is available through a [[BNC connector]]
The mass of the 7M11 is about 2.5 kg (5.5 lb), so one must be careful when sliding it into the slot. (Generally, Tektronix specifies not to ship mainframes with inserted plug-ins, to protect the bus connectors!)
at 5:1 attenuation (line 1 or 2 switch selectable).
 
The maximum signal allowed is +/- 5V.
The mass of the 7M11 about 2.5 kg (5.5 lb), so one must be careful when sliding it into the slot.  
(Generally, Tektronix specifies not to ship mainframes with inserted plug-ins, to protect the bus connectors!)


Because it is completely passive and has no bus contacts, the 7M11 can be  
Because it is completely passive and has no bus contacts, the 7M11 can be  
operated outside of the mainframe on the desk, freeing a slot for another plug-in.
operated outside of the mainframe on the desk, freeing a slot for another plug-in.
Tek originally made a carrying enclosure to hold a 7M11 for desk use.
Tek originally made a carrying enclosure (437-0106-00) to hold a 7M11 for desk use.
 
The interface between the GR-874 input connector and the trigger pickoff board is described in [[Patent US 3426311A|US Patent 3,426,311]], and is similar to the ones in the [[S-1]] and [[S-2]] samplers.


The interface between the GR-874 input connector and the trigger pickoff board is described in US Patent 3,426,311.
The [[035-5031-00]] TM500 plug-in is roughly equivalent to one half of a 7M11.


{{BeginSpecs}}
{{BeginSpecs}}
{{Spec | Delay | 75 ns (each channel) }}
{{Spec | Delay | 75 ns (each channel) }}
{{Spec | Delay difference | max. ±30 ps between channels}}
{{Spec | Rise time | 185 ps }}
{{Spec | Rise time | 185 ps }}
{{Spec | Attenuation | 2:1 (6 dB), main outputs / 5:1 (14 dB), trigger pick-off }}
{{Spec | Attenuation | 2:1 (6 dB) on main outputs, 5:1 (14 dB) on trigger pick-off }}
{{Spec | Input voltage | +/- 5 V, max. }}
{{Spec | Input voltage | max. ±5 V }}
{{Spec | Weight | 2.6 kg (!) }}
{{Spec | Weight | 2.6 kg (!) }}
{{EndSpecs}}
{{EndSpecs}}
Line 53: Line 50:
7M11.jpg          | In this specimen, the GR874 connectors were replaced by BNC connectors of adequate quality
7M11.jpg          | In this specimen, the GR874 connectors were replaced by BNC connectors of adequate quality
7m11-circuit.png  | 7M11 circuit diagram
7m11-circuit.png  | 7M11 circuit diagram
7M11_schem_corr.jpg | Correction R33 value
</gallery>
</gallery>


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[[Category:7000 series special-function plugins]]
[[Category:7000 series special-function plugins]]
[[Category:Delay lines]]
[[Category:Delay lines]]
[[Category:GR874]]

Revision as of 04:14, 28 December 2021

Tektronix 7M11
Dual Delay Line
7M11 front panel

Compatible with 7000-series scopes

Produced from 1969 to 1988

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

The Tektronix 7M11 is a plug-in which contains two independent 50 Ω, 75 ns analog delay lines with GR-874 connectors. Rise time is specified as 175 ps maximum, and attenuation is fixed at 2:1.

To eliminate an external power splitter, a separate trigger output is available through a BNC connector at 5:1 attenuation (line 1 or 2 switch selectable).

The mass of the 7M11 is about 2.5 kg (5.5 lb), so one must be careful when sliding it into the slot. (Generally, Tektronix specifies not to ship mainframes with inserted plug-ins, to protect the bus connectors!)

Because it is completely passive and has no bus contacts, the 7M11 can be operated outside of the mainframe on the desk, freeing a slot for another plug-in. Tek originally made a carrying enclosure (437-0106-00) to hold a 7M11 for desk use.

The interface between the GR-874 input connector and the trigger pickoff board is described in US Patent 3,426,311, and is similar to the ones in the S-1 and S-2 samplers.

The 035-5031-00 TM500 plug-in is roughly equivalent to one half of a 7M11.

Key Specifications

Delay 75 ns (each channel)
Delay difference max. ±30 ps between channels
Rise time 185 ps
Attenuation 2:1 (6 dB) on main outputs, 5:1 (14 dB) on trigger pick-off
Input voltage max. ±5 V
Weight 2.6 kg (!)

Links

Pictures

  • Front

    Front

  • Right side

    Right side

  • front components detail, right side

    front components detail, right side

  • front components detail, left side

    front components detail, left side

  • In this specimen, the GR874 connectors were replaced by BNC connectors of adequate quality

    In this specimen, the GR874 connectors were replaced by BNC connectors of adequate quality

  • 7M11 circuit diagram

    7M11 circuit diagram

  • Correction R33 value

    Correction R33 value

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