Octofilar resistors with calculable frequency dependence

The results are presented of calculation of the frequency dependence of an octofilar resistor, the resistive element of which is folded in such a way that it forms four long loops connected in series. Magnetic fluxes produced by the loops tend to cancel, similar to the fluxes produced by the two loo ps of the common quadrifilar reversed resistor. The folded length of the oc tofilar resistive element is one half of that of a quadrifilar resistor mad e from the same wire and having the same nominal resistance, and the octofi lar resistor has a smaller frequency dependence. As an example, a 12 906 Oh m octofilar resistor is described, for which the frequency dependence of it s parallel equivalent resistance is more than seven times smaller than that of a previously made 12 906 Ohm quadrifilar resistor in the frequency rang e 500 Hz to 5 kHz.