Ryan - G8RKEJan 9
My ferrite rings and wire have arrived at home today. Just need to source something for the antenna element. Thinking welding wire or thin aluminium rod.
Show threadRyan - G8RKE

My first attempt at winding on a pair of ferrite rings.

I've messed up and used 2x cores with one winding. I was planning on making a current balun, not voltage!

Now got to unwind what I've done so far and then figure out how TO do a current balun.

Jan 10 at 1:05pmWeb
Show threadRyan - G8RKEJan 10

I've had a look online and not having much luck gettint my head around it.

I have two cores, but I don't know the windings I need for a 6:1 impedence transformation.

Can anyone help?

Show threadRyan - G8RKEJan 10

I've had to stop for the time being. I've been using a schematic by VK6YSF but my stupid brain is having a hard time with how to route the wires at either end of the winding 😅

I also have a feline determined to love me so I guess that's enough for now anyway!

https://vk6ysf.com/balun_6-1_V2.htm

Balun 6:1 v2

Show threadRyan - G8RKEJan 10
I have also come across the below which suggests a 4:1 voltage balun with a 1:1 "downstream" of the 4:1 transformer.
Show threadIanJan 10
@G8RKE 6:1 not made one before. What's the application?
Show threadRyan - G8RKEJan 10
@mw0ian Folded dipole for 4m
Show threadIanJan 10
@G8RKE I made a coaxial 4:1 balun for a 4m delta loop once