From: "Mike Dennison" <mike.dennison@rsgb.org.uk>
To: rsgb_lf_group@blacksheep.org
Date: Tue, 23 Jan 2001 15:03:06 -0000
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Subject: Re: LF: Testing LF losses in materials
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G3NYK wrote:

> I have certainly used Andy's technique with the microwave oven to 
test
> some materials. Obviously any 'resistive' losses with generate heat

I once had the idea of making my mast-head loading coil look better 
by waterproofing it with some of the sealant you squirt between the 
bath and the wall in a bathroom. It comes in several colours and I 
tested the brown one in a microwave oven. I am pleased that I did as 
it became VERY hot. I could have spoiled a long length of Litz wire 
by using this material. I am back to using black plastic sticky tape (a 
reel of this stays cold in the microwave oven - though the cardboard 
former gets warm).


Mike, G3XDV (IO91VT)
http://www.lf.thersgb.net