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1951.c.c. Loewe Optaphon - first magnetic tape inside cassette

CASETA~1.JPG +++ 1942.a.  Textophon BW4 I - first audio cassette-3rd variant Thumbnails+++ 1963.c. 3M(Scotch)  type 270+++ 1942.a.  Textophon BW4 I - first audio cassette-3rd variant Thumbnails+++ 1963.c. 3M(Scotch)  type 270+++ 1942.a.  Textophon BW4 I - first audio cassette-3rd variant Thumbnails+++ 1963.c. 3M(Scotch)  type 270+++ 1942.a.  Textophon BW4 I - first audio cassette-3rd variant Thumbnails+++ 1963.c. 3M(Scotch)  type 270

- este prima variantă/idee de inchidere a unor role cu banda magnetică (de magnetofon clasic) într-o cutie detașabilă ; desi are aspect de caseta, totusi nu îndeplinește toate caracteristicile/obiectivele prin care caseta audio s-a impus în fata rolelor de magnetofon : nu este preînregistrată - deci nu s-a vândut separat de aparat, nu au fost reduse dimensiunile (cca. 37 x 17 x 2 cm), viteza (19 cm/sec) si durata, care erau similare magnetofonului; alăturat este prezentat aparatul unde era folosită. ACEASTA ESTE O FOTOGRAFIE din pliantul de prezentare (pe care îl dețin), NU CASETA IN SINE.

- this is the first variant of a marketed cassette/cartridge with magnetic tape ; it offered the facility to be detachable, but it hadn't all characteristics of a true cassette : it wasn't pre-recorded (so, it wasn't marketed separately), dimensions (cca. 37 x 17 x 2 cm, too big) + tape speed (19 cm/sec) + timing were same of a classic open reel-to-reel recorder's tape; see attached its player/recorder. THIS IS JUST A PHOTO taken from its manual (which I have), NOT the REAL CASSETTE.

Author
Loewe - Germany
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