- ++ 1981.g. Sharp GF-777H = greatest portable radiorecorder
- + 1985.c. Philips D8349 Cubooster - sample of "boombox"
- ++ 1988.i. Sharp WQ-T238 - sample of twice mechanism
- +++ 1968.j. Crown CSC-9350 world's 1st stereo portable radiorecorder
- + 1981.d. Philips D8814
- + 1984.b. Philips D8444
- + 1984.c. Philips D8634
- +++ 1972.d. Philips 22RR800 = world's 1st portable radio-recorder using sound filter; 1st european portable stereo r-r