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Re: tapered secondary form?
Thank everyone for the feedback,
I will most likely plan on using lots of nylon bolts and epoxy. For
everyone who wasnt sure, my secondary (when the two pieces are
assembled) would be 14" diameter by 54" tall. I am not sure but just the
two pieces way about ~10 lbs, and that much magnet wire (probably #16 or
#18) will most likely be 20-40 lbs - I am not sure, perhaps someone has
the weight/length value of the wire? So if anyone doesnt think that this
will be too heavy, I will go ahead with the glue and nylon bolts.
Thanks,
Tristan Stewart (KC2EBM)
>Tristan,
>You definitely do not want any metal inside your coil. I don't recall
>the size of your buckets, but what worked for me was hot melt glue. I
>put together a 6.5 inch secondary using plastic paint buckets (1
>gallon). They are utra thin polyurethane, so I figured it be good for
>low RF loss. I ground off the handle catches with a dremel, then used
>the hot glue in between each of the five buckets, as glue oozed out, I
>scraped it with wide blade screwdriver (while it was still hot). This
>held very well, and I haven't had any problems with coil!
>Hope this helps!
>
>P.S. (for you coilers with tight budgets, this is a cheap, quick form
>for secondary - you can get them free from a painter or for a couple
>bucks new.)
>
>Bob Volk
>
>
>>
>> Thanks, Bert, for the response. I was starting to think the same way.
>> Putting the bases together may also make it easier to connect the two
>> together. This brings up my next question, which is: any
recomendations
>> on how to affix the two halves together? I assume you dont want any
>> metal of any sort in the center of the socndary? I also assume that
>> judging the size of the coil it will most likely be heavy and epoxy
>> alone may not be sufficient. Does any have any tricks they use?
>
>
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