Superscope 8-Track recorder model TDR-830. Made by Marantz. From the 1970s. Festures, start/pause, limiter, Dolby nr, modes - rec - playback, power on/off, time counter with reset, mic right/left inputs, both right/left rec level control, both right/left VU meters. Very rare for an 8 track recorder to have a black face and power on/of button. Neat 8 Track recorder.