In audio frequency transmission systems which are used for the necessary transmission of control signals through the electrical power distribution systems, tuning inductors have a vital role for both signal quality and efficiency. Very high precision and quality are necessary for proper and accurate tuning of capacitors at the audio transmission frequency.

MANGOLDT tuning inductors are integrated with capacitors controls to precisely tune the capacitor to the exact audio frequency so that frequency does not become absorbed by the capacitor. These tuning inductors have multiple taps to facilitate accurate tuning regardless of the capacitor tolerance. Technicians are able to react cost-effectively to compensate for changes of capacitor value that are caused by the effects of aging.

Mangoldt tuning inductors are designed with very low power loss to minimize system energy consumption and power losses, thus minimizing energy costs.