LF: how to increase the Q of my loading coil?

[Dimitrios Tsifakis <dtsifakis@gmail.com>]

Hello group,

I would like to increase the Q of my loading coil for 475 kHz. . It
consists currently of a 20-litre plastic bucket with standard house
240V electrical wire (with PVC jacket). I measured the Q and found it
to be about 220 (XL is about 2 kohm). I do have  some Litz wire I can
use. I also have a piece of large diameter (25 cm) storm water pipe,
which I think is made of PVC.  Would you recommend using a PVC former
or should I look for a more exotic material (glass/porcelain)? Would
you think the inter-turn capacitance is very detrimental and some
exotic winding technique would yield better results?

I understand that ground losses are bigger in my case than the
inductor losses, but I would like to address the inductor first.

73, Dimitris VK1SV