[Lowfer] Beacon "USA" off the air due to contamination

Thu, 20 Nov 2003 20:22:32 +1300

A trial of a multi-plate cap (for LF tx loop tuning) made up from oven trays
(or similar) mounted in a tank of peanut oil is still on my list of things I
want to do. The cap is varied by pumping the oil in and out of the tank with
an aquarium pump. The oil should be a self healing dielectric but this will
definitely be an outside experiment when I crank up the loop current to 30
amps or so!
73
Dave,
ZL3FJ

----- Original Message ----- 
From: <[email protected]>
To: <[email protected]>
Sent: Thursday, November 20, 2003 4:46 PM
Subject: Re: [Lowfer] Beacon "USA" off the air due to contamination

>
> Someone mentioned this and I cant validate it but the idea
> sounds good. For a low loss Vari cap the suggestion was to make
> fixed plates , These can be welded, silver soldered to a common
> mount so the current and IR loss would be good. Then to vari the cap
> change the dielectric by sliding glass between the plates . You would
> have
> a varicap by varying the dielectric. It would go from air to glass
>
>
> would it work  ??  dont know never tried the idea
>
>
> Bob  K3DJC
>
>
>
> Next stop the
> > tuning
> > capacitor.
> >
> > "Film at 11:00 bulletins at once"
> >
> >
> > Paul A. Cianciolo
> > W1VLF
> > Beacon "USA" 1704.805.00 Khz QRSS 3
> > FN 31
> >
> >
> >
> >
> >
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> >
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