ROTARY MAGNETIC RECORDING AND REPRODUCING DEVICE

摘要

PURPOSE:To suppress the generation of noises by securing a lamination structure a signal pattern is enclosed by a shielding pattern for a flexible print wire board. CONSTITUTION:A rotary drum 8 containing plural video heads 7 is provided together with a fixed drum 1 containing a tape guide and a rotary transformer 5 containing transformers 5a and 5b at the fixed side and the rotary sides respectively. A flexible print wire board 19 is led out to the outside of the drum 1 from the transformer 5a. The board 19 has a lamination structure where signal patterns 14a, 14b, 15a and 15b are enclosed by shielding patterns 16a and 16b. An end of those signal patterns is connected to an enamel wire 13 of the transformer 5a with the end at the other side connected to a preamplifier. Thus the external noises are cut off by the patterns 16a and 16b. This reduces greatly the mixture of noises into the signal patterns.