Who manufactures high power transformer for 5W Class AB PA?

[SFactor]

pa hf 5w

Curremtly iam designing the 5W Class AB PA and iam facing a problem of finding a high power transformer ( Balanced to unBalanced ) with ratios 4:1 ...
does anyone know any company or manufacturer that can i find this transformer ?
Notr : i search in coilcraft but their transformer only supports 2W maximum ...

 

[flatulent]

Re: 5W Class AB PA

What is the frequency range? If your bandwidth is small you can use transmission line types. Otherwise you can wind your own. The book Transmission Line Transformers by Jerry Sevick, W2FMI is a good place to start. This book is quite popular and may be in a local library.

 

[webdog]

Re: 5W Class AB PA

If you are looking for HF transformers you may have luck at these places
**broken link removed**

and

https://www.rfparts.com/combiner.html#Broadband

Both are great companies to deal with!

/WebDog

 

[SFactor]

Re: 5W Class AB PA

The frequency range iam using is around 10-100MHz is this transformers can support this frequency range

 

[vfone]

Re: 5W Class AB PA

Here it is:
http://www.rhombus-ind.com/pt-cat/rf-2.pdf