Apparatus and method for recording and reproducing information signals

摘要

Magnetic recording and reproducing apparatus including a rotary head drum and power system. The rotary head drum includes at least a rotary head and preamplifier mounted therein. A rotary transformer communicates information signals to/from the rotary head drum and also transmits high-frequency powers signals for operating the pre-amplifer. The transmission occurs at time periods during which recording and reproducing action cannot be performed.