Определение количества витков первичной обмотки импульсного трансформатора

Actual footage of a pulse transformer turning test. The shunt resistance is 0.5 ohms, and with a voltage drop of 0.5 V, this is already 1 A of no-load current, which is too high. The no-load current for such a core should not exceed 0.1...0.2 A. For smaller cores, this value should be lower.