Re: Re[2]: LF: Do mains toroidal transformer cores have any use at LF / MF?

[phl@netikka.fi]

Hello,

18 V + 18 V = 36 V

Just use two transformers with series secondaries to get close to the  
"magic" 40 V

Paul-Henrik, OH1LSQ


Quoting Chris Wilson <chris@chriswilson.tv>:

> Hello Stefan and Hugh,
>
>
>
>   OK,  thanks  Stefan  and  Hugh, I don't think they had anything over
>   about  18V  secondaries.  I got my toroidal transformer for my G3YXM
>   136kHz  amp  from  www.tme.eu as they were the cheapest i could find
>   with sensible carriage costs. They have this:
>
>   http://www.tme.eu/en/details/55186-p1s2/toroidal-transformers/talema/#
>
>
>
>
> > They are not much good above audio frequencies and the turns ratio is
> > not convenient either. I should accept them and sell them on to
> > enthusiastic builders. I'd quite like, say, a 500VA 40+40V toroidal for
> > which I'd happily pay!
> > Hugh
>
>
>
>
> --
> Best regards,
>  Chris                            mailto:chris@chriswilson.tv