Which special, type of transformer are used?? can we use these VA rating transformer.
Look here:
if transformers - Google Search
Lots of info about IF transformers.
No, they dont have a VA rating.
At the risk of being accused of making a personal attack, you are either a troll or stupid.
You dont seem to make any effort to help yourself, you appear to have no understanding of electronics, you just ask a lot of pseudo random questions and demand answers:
please, reply............
You get the impression that you are an engineering student of some kind, I suggest that you give up now and find something more suited to your abilities.
JimB