Ferrite toroid coil calculator
Ferrite toroid calculator β the number of turns from the AL factor for the inductance you need, and the length of wire to wind it, with formulas and a drawing.
Ferrite toroid permeability calculator
Identify an unknown ferrite toroid β ΞΌr and AL from the inductance you measured with a few turns. Find the material of an unmarked core.
Ferrite rod coil calculator
Ferrite rod (loopstick) antenna calculator β coil turns on a ferrite rod, allowing for where the coil sits along the rod. For LW, MW and HF receivers.
Amidon ferrite toroid calculator (FT series)
Amidon FT ferrite toroid calculator β turns for the inductance you need from the catalogue AL value, with a reference table of ferrite materials.
Amidon iron-powder toroid calculator (T series)
Amidon T-series iron powder toroid calculator β turns from the catalogue AL value, with tables of mixes and the colour code of the cores.
Ferrite toroid at radio frequencies
RF ferrite toroid calculator β impedance, Q and self-capacitance of a coil on a ferrite core from Fair-Rite complex permeability data.
E-core ferrite coil calculator
Ferrite core inductor calculator for EE, EI and EC cores β turns, effective parameters and saturation current to IEC 60205, with a drawing of the core.
Binocular transformer calculator
Binocular transformer calculator for a two-hole ferrite core β primary and secondary turns, inductance and reactance, with a drawing of the core.
Common-mode choke calculator
Common mode choke calculator for a current balun on a ferrite toroid β R, X and |Z| from Fair-Rite complex permeability on every HF band. How many turns you need.