Before revision: P. Gilmore: "The PS Buyer's Guide to Personal Tape Recorders", Popular Science, No 125, November 1966 are portable magnetic audio tape recording devices, developed by Sanyo in 1964, using a special tape cartridge format with tape reels atop each other.Techmoan: Forgotten Format: SANYO Micro-Pack 35 Tape Recorder, YouTube, published on 31 August 2017 Device Offered as a reel-to-reel audio tape "Sound Camera".
After revision: small "sound camera"P. Gilmore: "The PS Buyer's Guide to Personal Tape Recorders", Popular Science, No 125, November 1966 are portable magnetic audio tape recording devices, developed by Sanyo in 1964, using a special tape cartridge format with tape reels atop each other.Techmoan: Forgotten Format: SANYO Micro-Pack 35 Tape Recorder, YouTube, published on 31 August 2017 Device Offered as a reel-to-reel audio tape "Sound Camera".