Re: how to hold down primary

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Mike Nolley by way of Terry Fritz <twftesla-at-qwest-dot-net>" <nolleym-at-willamette.edu>

> I needed to ask you how to hold down the turns of copper tubing.  I've made
> 8 supports with slots cut and drilled into them, then I lay down the tubing
> into the slots and volla, one primary.  But it doesn't lay flat enough and
> it wouldn't take much to jar it out.

    A typical solution would be to drill small holes beneath the slots and
hold the turns down
with zip ties.  A coil that my friend and I built used this technique quite
successfully.
        --Mike