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Ham Radio

Nichrome Inductor

[Today’s run: 3 miles.  Tuesday was 4 miles]

I got this harebrained idea that adding resistance in an LC filter might have an interesting effect. I had some discussion online and I did some reading. I’m thinking now it was a harebrained idea.
NIschematic
But!  data is a good thing.  So I painted a piece of Type A 30 awg  nichrome wire with some auto clear-coat as an enamel.  Then I made a toroid coil with it.  I put that in a filter configuration with a 470 pF capacitor and tried to measure the resonant point.  Hah!  I couldn’t find any resonance between .5 and 11.0 MHz.

I calculated that a normal copper-wire coil with that capacitor should resonate at around 3.8 MHz, something like that.  Nothing.  Now, my actual thought initially was to have the resistance between the resonant elements or pairs of resonant elements.  I may still give that a go.  But my reading leads me to believe that the whole idea was not likely to be useful.

Actually, the next thing I should do is make a copper version of this same thing and do the same measurements, to make sure that I haven’t goofed it up somehow.

NichromeInductor