[ARC5] Using a power transformers as a modulation transformer.

[Geoff]

> Dear List-members,
> Bry Carling has a pointer (or link) on his web-site, thus:
> " How to make modulation transformers out of old power transformers -
> by WA1HLR, Tim"
>
> This link does not work.
> Power transformers don't work (usually) as a modulation transformer
> because the (transmitter final) DC current saturates the transformer
> core.
> I would be interested to get information about using a power
> transformer as a modulation transformer.
> I would be interested to hear (or read) about the relationship between
> frequency response and quality of "iron" in the transformer.
>
>
>  73 de Les Smith
>  vk2bcu at operamail.com
>


Try this Les, and the idea works well. I hear Tim and others doing it 
somewhat often as Im a regular on AM.

http://www.amwindow.org/tech/htm/tvtomod.htm

Carl