Topband: Beverage transformers tht work down to 630 m

donovanf at starpower.net donovanf at starpower.net
Sun Jul 15 18:54:01 EDT 2018


Chuck, 


I used the BN73-202 transformer exactly as shown on W8JI's website 
and it work very well on 630 meters. I wish my Beverage were 
2000 feet long instead of 580 feet... 


73 
Frank 
W3LPL 

On Sun, Jul 15, 2018 at 6:29 PM, Chuck Hutton <charlesh3 at msn.com> wrote: 

> The commercially available Beverage transformers I have seen are like the 
> W8JI model: 2 primary turns on a BN73-202 core. 
> 
> My calculations say 4 turns are needed at 630 m. 
> 
> 
> Does anyone know of commercially available transformers with isolated 
> windings that operates well down to 630m? 
> 
> 
> Chuck 


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