The two-hole multi-aperture core is commonly used for wide band transformers and impedance matching devices. The primary concern, when designing a wide band transformer, is to extend the bandwidth with a minimum loss. The limiting factors are inductive reactance and core loss.
By winding through both holes of the binocular type two hole core, a higher inductance per turn can be obtained than would otherwise be possible with a single hole core.
Dimensions are in inches; AL values are in mh/1000 turns.
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