The Panasonic reel-to-reel tape recorder and player represents another step on the evolution of personal sound recording technology. As oxidized magnetic tape replaced steel wire as the optimal means of achieving accurate sound reproduction, and as the home market expanded for personal, portable audio electronics equipment, companies like Panasonic created devices for personal consumer use. The RQ-705 was introduced around 1967, and was produced until about 1969, so it must be assumed that Dr. Turner acquired this machine during that period.
The RQ-705 operates with a vacuum tube amplifier, and can be used as a PA system as well as a tape recorder and player. It is not known if Dr. Turner ever used this machine for anything other than recording and playing tapes in the course of his linguistics studies. The RQ-705 is a two-speed recorder, meaning it records sound at both 7 ½" per second and 3 ¾" per second.
The RQ-705 was considered the apex of Panasonic's consumer products line for reel-to-reel machines, as well as its workhorse model during the run of its manufacture. The RQ-705 utilized technology that built upon previous versions of Panasonic recorders, as well as other companies' research and innovation.