Integrated Circuits for Tape Recorder Operated by Single Dry Battery
Yojiro Fukushima, Akira Nohara, Takeshi lida, Yo Nakagawa, Masuo Nakamura · IEEE Transactions on Consumer Electronics · 1986
The latest portable tape recorders must be more compact, light-weight, and operate on a lower power supply, no more than a single 1.5V dry battery. Some of the latest integrated circuits for play-only tape recorders can operate on a single 1.5V dry battery, but integrated circuits for record-and-play cassette tape recorders still require two such batteries.