Coils with a closed Ш-shaped core made of ferrite 2000НМ9 - magnetic circuits of Ш 4x4 type; W
5x5; W 7x7; W 12x15; Ш 16x20, for operation at frequencies up to 0.45 MHz.
Coils and transformers W-shaped on plates made of permalloy 79НМ0,1 - magnetic pipelines of
types ШБ2,5x5; SB4x5; WB5x6.3; SB4x8; SB5x10; WB6x12.5; SB8x10; SB4x13; ШП12x15;
ШП17x20; ШП20x26; ШП29x32, for operation at frequencies up to 0.05 MHz.
Ш-shaped coils and transformers on plates made of electrical steel E46- 0.35; E42-0.35 - magnetic
circuits of types ШП12x15; ШП17x20; ШП20x26; ШП29x32, for operation at frequencies up to 1
kHz.