Re: R: Re: R: Re: LF: RE: Combining LF amps revisited

[Chris Wilson <dead.fets@gmail.com>]

22nd May 2017

Hello Marco,

I would be very interested to read / see your endeavours with this new
amp,  if you have the time and inclination to document what you are up
to? Interest seems to have shifted slightly to the wonderful Ebnaut on
VLF  at  the  moment, something i one day wish to try, but not until I
perfect my LF set up a lot more! Good lick with the new design!

Tuesday, May 16, 2017, 6:40:31 PM, you wrote:


> Hello Chris,

> happy to read that increasing the turn number you can make the life 
> easier to the toroids ;-) (the FETs also enjoy hi).
> I'm not a professional, but using the formula and taking 
> care of respect of the Bmax of 0.1T, I had (up o now) no problems with
> xformers. Since some years I switched to  Epikote forms wich are 
> looking better for low frequencies (and here in Italy are also cheaper
> of Amidon cores).
> In the weekend I should start some trials with simil Decca approach: 
> the PS at 180Vdc is already running and could be later transformed in 
> direct rectification of the main aiming to 1kW which should then allow
> to reach the 1W. Still running 250 or 20W on LF with satisfactory 
> resoult considering the city antenna and the season :-)

> 73, Marco IK1HSS



-- 
Best regards,
 Chris                            mailto:dead_fets@gmail.com