DESIGN OF A MULTI‐CHANNEL ROTARY TRANSFORMER FOR APPLICATION TO DIGITAL MAGNETIC RECORDING

Abstract

Rotary transformers are important parts of magnetic tape recorders using cylindrical scanners. Typically, heads for recording and playback are mounted on a rotating cylinder which scans the tape at high speed. Writing and reading signals are coupled to the heads through a rotary transformer. This paper describes a design procedure for a multi‐channel, miniaturized transformer for application to high‐density, digital magnetic tape recording. The requirements for the particular example presented were for the transformer to pass six identical recording/playback channels with a minimum insertion loss. The outside diameter of the transformer should be no greater than 16.5mm.

Citation

Monson, J.E. (1995), "DESIGN OF A MULTI‐CHANNEL ROTARY TRANSFORMER FOR APPLICATION TO DIGITAL MAGNETIC RECORDING", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 14 No. 4, pp. 133-136. https://doi.org/10.1108/eb051929