+ 1971.a. Philips N2000
1971.b. Philips 22RR500 (50)
+++ 1971.c. Uher CR-124 - primul HIFI autoreverse portabil - first portable HIFI & autoreverse
+ 1971.d. radio in caseta/cartridge tuner KT-5
+++ 1971.e. Pioneer M-7S Hipac
+++ 1971.e.c. Hipac - japanese endless cassette/cartridge inspired from Playtape
++ 1971(?).f. Norelco 3170 - first Philips (USA) stereo portable radiorecorder 
+++ 1971 g. Alpha One 
+++ 1971.g.c. Alpha One 
+++ 1971(?).h. Assmann Memocord K60
+++ 1971 (?).j. Continu-sound - endless cartridge
++ 1971.k. Philips N6720 (DNL)
+ 1972.a. Sanyo G-2615
++ 1972.c. Philips LCH1012
+++ 1972.d. Philips 22RR800 = world's 1st portable radio-recorder using sound filter; 1st european portable stereo r-r