Re: 6ga wire vs 1/4 tubing for 900W coil primary?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Antonio Carlos M. de Queiroz" <acmdq@xxxxxxxxxx>

Tesla list wrote:

> Does anyone see any advantages or drawbacks (functionally) to using
> stranded wire for a primary instead of copper tubing? I was going to
> use 1/4" tube, but have a boatload of 6awg stranded wire sitting
> here, which will be an awful lot easier to work with, and I figure
> that I can strip an inch or so of insulation on the outer turns for
> the taps, leaving the rest insulated.

My coils have always used insulated primaries, calculated to have
the desired inductance. The calculation is precise, and there is
no need of tuning. I like to tune by changing the capacitance of
the top load, if necessary. A telescopic antenna for low power,
adding a ball at the tip of the antenna to increase the breakdown
voltage for higher power.
http://www.coe.ufrj.br/~acmq/tesla/tefp.html
(I admit that I have only experimented with relatively low power)

Antonio Carlos M. de Queiroz