"Franco" SU-02 10GHz PCB

[KR]

All, I found an interesting post on X.com today from Steve @G8GKA.  It's about how to fit the "Franco" board into a better RF enclosure and running it as a 10GHz LNA?

Here's a useful link regarding those mystery boards:
https://wiki.microwavers.org.uk/%22Franco%22_SU-02_10GHz_PCB

I will have more time to participate with the group again soon.

--Konrad

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--Konrad Roeder
konrad...@gmail.com

Cell:  425-444-0595

[Ray Cannon - W7GLF]

Konrad - very interesting articles.  I wonder how he built the cases?  Did he buy them somewhere or build them himself?

I have several articles about these boards.  The first is a translation of F6CXO's article.  The bad news is the photos are much better in the French document.  I also have some comments from W7PUA regarding using the existing power supply and a photo of the one I am using on my 10 GHz.

Unfortunately Google groups does not allow big attachments so I put it on my Dropbox if anyone is interested.

https://www.dropbox.com/scl/fi/o7vgry221uvxcn92ar0eu/ne32584_preamp.zip?rlkey=08g9dngkvmaa4rneoy4930o4v&st=pyzr4yio&dl=0

[KR]

Ray,

I think Steve's (G8GKA) boxes look like they were made out of steel folded into a rectangular box.  Both ends look like they've been stamped out of steel.  The two end parts pop onto the rectangular square.  His method of making a box is similar to what LG Labs uses to make their transverters.  Looking at his X.com posts, it looks like he uses that method of making boxes often.

I may build my boxes for the LNA out of circuitboard material.  I think the chinese RF shield boxes on EBay may not be the right size or too expensive.

Thanks for the dropbox share.  I managed to download all of the F6XO articles and your power supply notes.

--Konrad  WA4OSH

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[Mike Lewis]

There is a company I believe is in Germany that makes standard size tin plated steel boxes like you see in some Kuhne, SG-Labs, the G8GKA and several DIY projects.  Saw them many moons ago, don’t recall name.

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[Frank M. Kromann]

I've started using tin plated steel to build boxes. It is similar to the one in the article and easy to solder. We can discuss further on Sunday.

- Frank

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[Frank M. Kromann]

The only once I have found are from Italy https://www.rf-microwave.com/en/nbp/nmp/tin-plated-sheet-metal-box-111-74-30/sl-24/ they come in many sizes but shipping is expensive.

They also sell the LNA boards: https://www.rf-microwave.com/en/nbp/nmp/10-ghz-amplifier-24ghz-doubler/su-02/

- Frank

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