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Re: [TowerTalk] New 9 circle PCB with CMCs

To: Stan Stockton <wa5rtg@gmail.com>
Subject: Re: [TowerTalk] New 9 circle PCB with CMCs
From: VE6WZ_Steve <ve6wz@shaw.ca>
Date: Thu, 3 Feb 2022 12:40:43 -0700
List-post: <mailto:towertalk@contesting.com>
Stan,

FB on ordering and sharing your boards.
Most manufacturers have a minimum order.  Mine from JLCB cost $30 for 5 boards 
delivered to the door in 5 days.
Indeed it seems to make sense for guys to get together and share.

Peter, thats great if you can offer the boards on the PI4CC webpage.

73, de steve ve6wz

> On Feb 2, 2022, at 3:59 PM, Stan Stockton <wa5rtg@gmail.com> wrote:
> 
> Thanks for the work, Steve.  You are a good man and we appreciate it.
> 
> 73...Stan, ZF9CW
> 
> 
> 
> On Tue, Feb 1, 2022 at 11:22 AM VE6WZ_Steve <ve6wz@shaw.ca 
> <mailto:ve6wz@shaw.ca>> wrote:
> Today I uploaded a YouTube video describing my new 9 circle combiner board 
> PCB design that has small Murata SMD CMCs on each RG-6 feedline.
> 
> I include PCB file links to download in both KiCad format or a zipped Gerber 
> folder if you want to build your own.  A BOM and an image of the schematic is 
> included as well.
> This is the 9-circle array that was designed by John W1FV.
> 
> I review why we need these CMCs, I talk about these small Murata chokes and 
> some VNA tests I did and how these same units can be used as Magic-T’s.
> The new design also has a pin-out for the vcc and relay control lines, has 
> the option for gas discharge tubes on the vcc and control lines, and the 
> board has a slightly larger footprint than my previous designs so its its 
> easier to access the F-connecters for field installation.
> 
> The evaluation is still on-going at VE6WZ, but the board tested very well in 
> the shop with the VNA, and I used it this weekend for the CQWW 160m test and 
> it performed well.
> 
> I know there are many that don’t like to watch a video, and I may build a PDF 
> document, but in my prior life, all I did was make technical/ scientific 
> documents and I’d rather not do that anymore.
> It’s much easier to say things quickly in a video.  If a picture is worth a 
> 1,000 words, then a video is worth a million.
> 
> https://youtu.be/lVW1CmrzP7c <https://youtu.be/lVW1CmrzP7c> 
> <https://youtu.be/lVW1CmrzP7c <https://youtu.be/lVW1CmrzP7c>>
> 
> 73, de steve ve6wz
> _______________________________________________
> 
> 
> 
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