I wouldn't fret too much about it. Just reduce the wire size to the
point where you can easily get it all on one layer (as others have
suggested), and it'll be fine.

The fact is that the cores themselves vary quite a bit from one to
another, and normal variations in winding technique increase the
variability, so any good design either doesn't need for the finished
inductor to be a precise value (that is, it's in a relatively low Q
circuit), or it has some means (such as a variable capacitor) of
adjusting to compensate for variations. In short, it shouldn't really be
that critical.

Roy Lewallen, W7EL

David Duxbury wrote:
Hi again Guys I phoned the Vectronics people all I got from them was
yes you can wind forty turns onto the core, I say Bull.... I read in the
same instructions to wind on only 80 percentof the core, now I am a real
quandary? I am new to this but I hope not stupid, help please Dave.

David Duxbury wrote:

Good day I am putting together a Vectronics 80 Meter Transceiver
Kit , the problem I have is winding the T50-2 toroid , the
instructions state to wind 40 turns of 24 gauge wire, would that be
two passes of twenty as forty on a single pass is nigh impossible.
Help would be appreciated.