[ARC5] Coils and the winding thereof

[mac]

Don't see any problems on HF at your stated power levels.  VHF/UHF  
another matter.  Why don't you try it and give us all a report?

Dennis D.  W7QHO
Glendale, CA

On Jun 30, 2009, at 2:42 PM, Michael Tauson wrote:

> Back before time when I was making receivers from 1930s Gernsback
> publications, one of the things I did was to make coil forms by
> finding something a decent amount under the final coil form diameter
> (which was mostly guesswork), wrap it in waxed paper then wrap lengths
> of newsprint that had been precut to the width I needed around it.
> The layers were "glued" to the previous ones using spar varnish (of
> which I had plenty) then, when the varnish was tacky, I'd wind the
> coil so it would be held in place when the varnish completely dried.
>
> This worked fine for TRF & regen receivers and I'm wondering if
> there's any reason it wouldn't work for the transmitter[s] I have
> planned.  The maximum power out I want will be around 25 watts with a
> more desirable output being 10 watts with the attendent reduced
> voltages & currents so that shouldn't be an issue, and I can't think
> of anything else that might become an irritation but I am sure I'm
> overlooking something important.  And thoughts or ideas?
>
> BEst regards,
>
> Michael, [wh]7HG  :-)
> -- 
> http://www.nationalmssociety.org/chapters/NTH/index.aspx
> http://wh7hg.blogspot.com/
> http://kludges-other-blog.blogspot.com
> Hiki Nô!
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