MCoil transformer core coils

Mundorf Trafokernspulen

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Transformer core coils are heavy-duty bass coils. For inductors from approx. 5.6 mH upwards there is almost no way around them. They combine extremely high power handling, low ohmic resistance and good mechanical mounting options with an optimum price/performance ratio.

For the production of the transformer core coils t84 to t150 Mundorf uses exclusively the particularly low-loss and low-distortion FERON© as core material. This is grain-oriented silicon iron with a sheet thickness of 0.35 mm. This high-quality starting material is subsequently heat-treated in a special process. In this way, distortions in the crystal lattice structure of the material, which occur during rolling and punching, are eliminated. This gives FERON© a crystal lattice structure with optimal magnetic properties. This type of core material is used to manufacture high-quality audio transformers. In "ordinary" transformers it is only very rarely used, for example when very low power dissipation is required. The correct term would therefore be "transformer core coil". In this design, coils with very low internal resistances and extreme load capacity can be manufactured. These are the prerequisites for a precise low bass. The ratios of inductance to internal resistance that can be achieved here can often not be achieved with pure air-core coils at all or only with considerably higher financial outlay. The vacuum impregnation described in detail at the end of the chapter on zero-ohm coils is recommended without reservation for transformer core coils as a supplementary measure due to their high quality.

articles on the topic MCoil transformer core coils

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Transformer core coil with core 84 of FERON ®