[Prev][Next][Index][Thread]

Re: Toroid = shorted turn ?



In a message dated 98-10-09 21:48:28 EDT, you write:

<< 
> The problem is that the primary tank will induce currents directly in the
> toroid. If you remove the secondary and run the primary alone but with the
> topload stood on an insulating pillar, joule heating still occurs whether
> the toroid is centre-disked or not. Unless your topload is zero resistance
> at the frequency of interest.
 
> Richard Craven, Malvern, England
  >>

Richard, all,

Fr. Tom suggested some time ago that in tube coils the toroids
might be heating up from dielectric effects heating the air around the
toroid.  What is your view of this possibility?

Thanks,
John Freau