Hi Stefan,
at the institute I am working we are using lithographic superconducting coils
with special NPO capacitors In the range from 100KHz to 5MHz Q up to 5000 is
optained....
73
Victor
-----Oorspronkelijk bericht-----
Van: [email protected]
[mailto:[email protected]]Namens Stefan Schäfer
Verzonden: zaterdag 1 oktober 2011 0:00
Aan: [email protected]
Onderwerp: Re: LF: Ferrite RX antennas
Hello Jim,
Maybe liquid helium and a superconductor material? ;-)
73, Stefan
Am 30.09.2011 15:14, schrieb James Moritz:
> Dear Mal, LF Group,
>
> G3KEV wrote:
>> Some commercial produced coils encased in helium tubes had vy high Q
>> that would rival the ferrite variety used today.
>
> Helium tubes? Sounds like a good way of separating unwary amateurs
> from their money!
>
> Cheers, JimMoritz
> 73 de M0BMU
|
