YooFab RFLEGO - Toroid Winding Step 25; Using the FT37-43

To Next Page

To Previous Page

Toroid winding step 25

With the green toroid with ten turns, the LC meter reads a value of 512 uH.

Using the FT37-43

Using the FT37-43, each winding of ten (10) turns should produce 35 uH.

• @ 3.5 MHz corresponds to an impedance of about 770Ω

• @ 7 MHz corresponds to an impedance (Z) of about 1.5KΩ

• @ 30 MHz corresponds to an impedance of about 6.5KΩ

The above is sufficient for our transformer to work well over the entire HF

spectrum.

ASSEMBLY INSTRUCTIONS

RFLEGO Active Antenna Receiving Loop