Powell 8 Track Recorder Deck RS-855US

Home 8‑track recorder/player sold in the early 1970s. The RS‑855US provides 2‑channel stereo recording on standard endless‑loop cartridges and 4‑channel playback when used with quadraphonic tapes and a suitable amplifier or receiver. The model was marketed in some U.S. retail catalogues under the “The Powell.”
The deck includes program indicator lamps, two VU meters, microphone inputs, auxiliary line inputs, and four line‑level outputs for quad playback. Transport functions include continuous play, fast‑forward, program selection, and manual eject. A stereo headphone output is provided for monitoring. The cabinet is finished in walnut‑style veneer with a silver/black front panel typical of Panasonic’s early‑1970s design.
Frequency response is specified to extend to approximately 12 kHz, consistent with consumer 8‑track performance of the period.

From the 1973 Burstein Catalogue.
The Powell puts you in the center of the exciting new sound in music . . . 4 channel stereo with 4 separate amplifiers to surround you, literally, with unbelievably realistic concert hall sound. Use with a 4 channel receiver or amplifier system. Records your own 8 track cartridges in regular stereo. Has 2 channel and 4 channel operation indicators. Features continuous play position, locking fast forward, eject button, program selector and direct read out program indicator. Two easy-read VU meters, headphone monitor. Hondsome walnut wood cabinet. Has input jacks for 2 microphones and 2 auxiliary inputs, with output jacks for 4 lines and stereo headphone. Frequency resp. 50 to 12,000 Hz. For 120 VAC.

In questo link sono elencati 3318 modelli, di cui 3113 con immagini e 723 con schemi.
Elenco delle radio e altri apparecchi della Panasonic, Matsushita, National ナショナル (also tubes); Osaka