7M11: Difference between revisions

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


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


The maximum signal allowed is ±5 V.
The maximum signal allowed is ±5 V.
The mass of the 7M11 about 2.5 kg (5.5 lb), so one must be careful when sliding it into the slot.  
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!)
(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  
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The interface between the GR-874 input connector and the trigger pickoff board is described in [https://www.google.com/patents/US3426311 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 [https://www.google.com/patents/US3426311 US Patent 3,426,311], and is similar to the ones in the [[S-1]] and [[S-2]] samplers.


{{BeginSpecs}}
{{BeginSpecs}}

Revision as of 04:05, 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. 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 at 5:1 attenuation (line 1 or 2 switch selectable).

The maximum signal allowed is ±5 V. 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.


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 ±5 V, max.
Weight 2.6 kg (!)

Links

Pictures