Topband: 1:2 UNUN

[Bill Shell - N6WS]

Kenny,

I used three large torroid cores, 12AWG silver/teflon wire, and 10 
turns/14 turns to match 25 ohms to 50 ohms.  There is a picture of the 
transformer in my Phasing Switch Box at:

https://www.n6ws.com/projects/

To give you some perspective of size, it is in a 8" x 8" box.

73, Bill
N6WS

On 1/17/2022 6:18 AM, Kenny Silverman wrote:
> Does anyone have a drawing on how to wind a 1500w 1:2 UNUN?  And what type of core is needed?
>
> This is for my 160m vertical which is about 28 ohms.
>
> Regards , Kenny K2KW
> _________________
> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector