Thanks to all your replies. There is a lot of valuable information. This is my first toroid and I want to make sure I have it right.
I'm winding T3 which is an FT37-61 with 23 turns of #28 and 6 turns of #26.
Looking at:
... suggests that the 23 turns should give me 29uH and I'm measuring 28.4uH on my L/C meter. I haven't added the secondary yet. I just wanted to make sure I was on the right track and that the 0.6uH is within tolerance.
Thanks to all.
73,
Paul VA3ZC
