[Amps] Tank Coil replacement with Toroid Core coil

[MorgusMagnificen at aol.com]

Don:
       I will not debate the price issue, because it is highly variable. My 
figures are for very high-performance cores, which this is not.

       You are missing an extremely important point.The power losses do NOT 
scale up linearly with power level. They are extremely non-linear, which is 
obvious from the data. Every ferrite material has something that resembles an 
exponential rise in power loss vs. frequency and power loss vs. flux density 
(at a given freq.). 

       If you want a copy of my calculations, I will be glad to send them. I 
did not post my calculations because I try to keep the reading on this forum 
as light as possible. Not everyone who reads these postings has the training 
to digest a lot of calculations. I make my calculations off line and list 
only the results. I always append notations if any unorthodox calculational 
methods have been employed. If you think I don't know what I am doing, I will 
be glad to send you a copy, if you will give me at least a hint of what you 
think is wrong or has been neglected.
 

       I would also like to re-iterate that my calculations were very simple 
applications of the mfrs. data to a toroidal inductor - no rocket science 
here. As always, I clearly stated all of my assumptions. The validity of the 
mfrs. data is somewhat open to discussion, in my mind (anyone who is 
interested in and knowledgable in THAT area, I would really like to talk to). 
But aside from that, the rest is applied circuit theory 101.

Eric von Valtier K8LV