Polyester/imide coated wire- any good for coils?

[Tim]

Hi. I found this wire on ebay. It says good for coils, but just wondering if there are some informed opinions here?
Also a google patent if anyone's interested...
http://www.ebay.com.au/itm/POLYESTER...TUJy8X28M28ojg

https://www.google.com/patents/WO2014055732A2?cl=en

[kt315]

http://www.mihaniko.ru/Index/image_S...Image00007.jpg
1. open your old tv
2. look around CRT
3. find a coil around
4. take it easely
5. its 0,5-0,6 mm diameter wire
7. if you need more diameter take some amount N and twist wires together, N*S(1)=S where S is needed square
8. this is not cost nothing for you

[Tim]

Thanks for your reply KT. I have .5mm wire, and .25mm wire. Looking at winding some vlf coils, so was considering .25mm and .4mm. Sorry I'm not very good with mathematical acronyms. I understand S to be the cross-section area, but no idea what N or * are.
I was wondering if this polyester/imide coating was beneficial or detrimental for winding vlf coils, mainly.
I have a heap of .25mm. Would 2 twists of this be larger or smaller (equivalent) to .5mm?
Yes, I have several old TVs I can disassemble at a pinch for PI coils. Thank you.

[Koala]

Yes

EBay link looks like the wire I use.

[eclipse]

I bought same wire from the same seller, it's okay for all tasks (PI & VLF).

[Tim]

Good to know- thank y'all.