[Amps] Guidelines.....toroids for tank ckts

[PACER99 at aol.com]

guys,
 
this is a ridiculous waste of time. i was really curious as to toroids  
practical use in high power amp design and was hoping that someone would  
recommend reading material or designs for the same.
 
get a life if you can't give the originator of this thread a straight  
answer.
 
73,
larry
n7dd 
 
 
In a message dated 27/03/12 12:08:09 A.M. Morocco Standard Time,  
jtml at losalamos.com writes:

Peanut  butter at least has low magnetic loss tangent. I would think it 
would have a  high and unstable dielectric loss tangent as it heats readily at 
2450  MHz.  Sometimes I heat it to get it flowing again, after being  
refrigerated. The cheap plastic jars around here have that foil seal on the  lid. 
When it is opened, undoubtedly there is a metal strip remaining on the  edge 
of the jar. When I stick that into my RadarRange, it always arcs and  
sparks, dang it.  
73
K5PRO



> Date: Mon, 26 Mar  2012 00:44:15 +0000
> From: Manfred Mornhinweg  <manfred at ludens.cl>
> Subject: Re: [Amps] Guidelines.....toroids  for tank ckts
> It might be rather lossy. The resistive permeability  might be larger 
> than the inductive one. But once the jelly is hot,  eat it, it tastes 
> good when hot. That will leave you with a high-Q  donut.
> 
> A year ago I was on a trip on a sailboat, and the  autotuner of my TS-450 
> absolutely didn't want to tune up the backstay  on 80 meters. So I wound 
> a loading coil on a peanut butter jar. A few  days later we ate the 
> peanut butter, forcing me to move the turns a  little closer together on 
> the empty jar, to maintain proper  resonance. There didn't seem to be 
> much difference in performance.  Peanut butter has low permeability, and 
> apparently pretty low loss  too.



_______________________________________________
Amps  mailing  list
Amps at contesting.com
http://lists.contesting.com/mailman/listinfo/amps