greatbear blog posts: audio tape
MINT GRUNDIG C 4200 Radio - Cassette-Recorder
Grundig C 100 and the early history of the Compact Cassette
MINT GRUNDIG C 4200 Radio - Cassette-Recorder
Vintage Cassettes
Grundig Tonband-Fibel, Cassette recorder C 100 L, 1966
Cassette tape, Ultimate Pop Culture Wiki
Grundig tape recorder hi-res stock photography and images - Alamy
The history of film formats: the German answer to compact cassettes
VHS, The JH Movie Collection's Official Wiki
Author: debra greatbear audio and video digitising
C100 R-Player Grundig Radio-Vertrieb, RVF, Radiowerke, build
tape blog - Greatbear audio & video digitising