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7000 Mater 4 holed socket?

 

Hello people of Tekscopes,

I am curious to know what the function of the four holed (socket?) is on the top of each 7000 series plug-in "mater".

I've 3D modeled these maters but never the 4 holed bit as I can't see a function for them. The main frames do have a matching 4 holes too.

Were these holes for somekind of socket for extra functions that Tek eventually scrapped?

Thanks,
Benjamin
 

/g/TekScopes/album?id=299577

Oh and here are the photos

Benjamin
 

The four holes accommodated blind-mate coax connectors that were used for custom modifications. For example the 7D20 was modified to accept signals from the rear of a modified mainframe.
There were no standard catalog products that depended on them. If you are making a modern replacement, you do not need the four-holer.
 

Exception is the 7A21N.
 

TTBOMK these were intended for an optical readout system that never saw the light (excuse the pun) of day...
 

Oh, btw, care to share that 3D model? I have some plugins with broken ones...
(the hand was quicker than the mind: caffeine deficiency)
 



I have posted 3D models on the EEVblog forum for the entire plug-in chassis for the 7000 series. A few tweaks can be made, but work fine for me.

You can find the mater model under the "mater" tab in the onshape project.

I have also posted a number of other Tek parts on the thread as well, so feel free to look around. My most recent one is the bezel for 7000 series scopes. Fits 7904, 7613, 7623, 7844, and other standard CRT bezel sizes for the 7000 series.

Also, is "mater" the correct terminology for that part?

Thanks,
Benjamin
 

I like the 7T69 Turbo Encabulator. It is very inspiring and a necessary addition to any collection!
 

The Tek part list for 7000-series plugins refer to your ¡°mater¡± simply as Rear Panel.
 

I recommend avoiding online CAD platforms like Onshape and Tinkercad for any serious work, as they don't allow you to export the design (extrusions, dimensions, sketches, etc.), so it cannot be archived or edited elsewhere. You can only download the final computed mesh rounded to some fixed precision, which is suitable only for printing. When the website inevitably shuts down, the design will be lost forever.

With standalone CAD packages, you'll be able to convert your design to other formats or use the original software in a virtual machine, even 10, 20, or 50 years from now.
 

The famous Turboencabulator! Now I haven¡¯t heard that for a long time! LOL!

Jim Ford
Laguna Hills, California, USA

On Dec 19, 2024, at 7:27?PM, Nick via groups.io <tekscopes@...> wrote:

?I recommend avoiding online CAD platforms like Onshape and Tinkercad for any serious work, as they don't allow you to export the design (extrusions, dimensions, sketches, etc.), so it cannot be archived or edited elsewhere. You can only download the final computed mesh rounded to some fixed precision, which is suitable only for printing. When the website inevitably shuts down, the design will be lost forever.

With standalone CAD packages, you'll be able to convert your design to other formats or use the original software in a virtual machine, even 10, 20, or 50 years from now.
 

Here's the original before subsequent made it inefficient.



John??? KK6IL

On 12/19/2024 8:07 PM, Jim Ford via groups.io wrote:
The famous Turboencabulator! Now I haven¡¯t heard that for a long time! LOL!

Jim Ford
Laguna Hills, California, USA
On Dec 19, 2024, at 7:27?PM, Nick via groups.io<tekscopes@...> wrote:

?I recommend avoiding online CAD platforms like Onshape and Tinkercad for any serious work, as they don't allow you to export the design (extrusions, dimensions, sketches, etc.), so it cannot be archived or edited elsewhere. You can only download the final computed mesh rounded to some fixed precision, which is suitable only for printing. When the website inevitably shuts down, the design will be lost forever.

With standalone CAD packages, you'll be able to convert your design to other formats or use the original software in a virtual machine, even 10, 20, or 50 years from now.
 

John Addis discusses this at


Key paragraph:
The 7000 series projection contains four atavistic holes which were once going to hold SMB connectors for the signal and trigger paths. They were designed into the interface at an early date. Roy Hayes (3A3, 3A8 and 7A12 designer) then suggested that an edge connector could be made with adequate HF response and that the connectors and cables would be an unnecessary expense. The SMB connectors were never used.
-George

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