Making a Simple DIY 1:1 Common Mode Choke | How to make a Common Mode Choke
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- čas přidán 14. 03. 2024
- Here's a video to give you an idea on making a Simple 1:1 Common Mode Choke. Thanks for watching!
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#hfrfi
#commonmodechoke
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Thank you Darren! I am making one now and I came upon this video. I was going to use RG58 until I saw this, so I have changed my plans and am going with RG400 after watching your build. Thanks so much! Jack K1JW
Great Info. I've been looking for a video like this!
These work very well, and of course if you have spare RG400 left over it makes great patch leads. 73
Looks really good 💯👌
An easy way to do the braid cleanly is to use an awl at the end of the insulation and work a hole in the braid until it's big enough for the center conductor to go through. Then do a hard bend and you can fish the center out through the hole and use the awl to work it out. After the center is out you can work the braid and it looks like it was made that way. And the end of the braid will be pristine for soldering to your ground lug.
Hi Darren,
Great build. G3TXQ has very good common mode choke info on his website. RG400 uses a Teflon dielectric center insulator, so any soldering iron or gun wouldn't come close to affecting it. I've used a plumbing torch to install PL-259's on RG400. 73 WJ3U
Commercial balun shown is from Balun Designs.
Nice Job Darren, Reese N5YWP
Good job capt. Did you hear from yaesu about your rotor?
Yeah, rois fine so either the controller or wiring may be bad.
Darren, I am thinking of combining this common mode choke with a 9:1 UNUN in the same project box. Do you think this will work, or could there be some interaction between the two if they are located in close proximity in the same project box? Thanks!
I don't see why not. I've connected my 4:1 to a 1:1 CMC but using a male to male PL249 connector to connect the two together.
Is the same we called 1:1 current balun ?
Yes it is.
@@DarrenN4VFR Thanks sir
Cost of this to make ?
Around $85-$100 USD.