+++ 1987.g. Tesla transcriber 120
+++ 1987.h. Tesla Transcriber
+++ 1986.a. Nagra JBR PS-1
+++ 1988.k. Pocket Rockers - smallest portable endless cassette player
+++ 1987 .d. caseta/cassette DAT = Digital Audio Tape
+ 1990.a. Philips FC260
+ 1990.b. Philips AQ5150
+++ 1988.k.c. Pocket Rockers - smallest endless cassette 
++ 1988.i. Sharp WQ-T238 - sample of twice mechanism
1988.d. Electronica Sistem Compact Stereo 001
+++ 1988.c. Bang & Olufsen Beocord 4500 - best design
+ 1987.a. Philips D8078
1987.f. Tehnoton Condor 622
+ 1986.b. Philips D8082 Le Cube
+ 1986.d. Philips FCD185