DC-International

DC-International is a tape cassette format developed by Grundig and marketed in 1965.wikipedia
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Cassette tape

cassetteCScompact cassette
Since DC-International did not compete effectively against the similar Compact Cassette, it was discontinued in 1967.
Grundig came up with the DC-International derived from blue prints of the Compact Cassette in 1965, but failed on the demand of distributing companies.

Single-hole cassette

Starting in 1961, Philips (in conjunction with Grundig) began work in its Vienna tape production facilities, on a (HiFi)-compatible single-hole cassette.
Based on design drawings of the compact cassette Grundig developed the DC-International which was released in 1965.

Grundig

Grundig AGGrundig GmbHGrundig International
Starting in 1961, Philips (in conjunction with Grundig) began work in its Vienna tape production facilities, on a (HiFi)-compatible single-hole cassette. DC-International is a tape cassette format developed by Grundig and marketed in 1965.

Philips

Philips ElectronicsRoyal Philips ElectronicsPhilips Media
Starting in 1961, Philips (in conjunction with Grundig) began work in its Vienna tape production facilities, on a (HiFi)-compatible single-hole cassette.

High fidelity

hi-fihigh-fidelityHiFi
Starting in 1961, Philips (in conjunction with Grundig) began work in its Vienna tape production facilities, on a (HiFi)-compatible single-hole cassette.

Stuttgart

Stuttgart, GermanyStuttgart, West GermanyVaihingen
The DC-International system was presented at the 1965 Stuttgart, Germany radio exhibition.

Tape recorder

audio tapetape machineaudiotape
At that time, Grundig was the largest tape recorder manufacturer worldwide and wanted to be represented in the newly created tape cassette market, as well.

Polystyrene

expanded polystyrenestyrofoampolystyrene foam
The dimensions of a tape cassette (according to the DC-International system) are 120 mm × 77 mm × 12 mm, the weight is 65 g. The case is made of polystyrene, and a viewing window with scale incorporated into it, was included, so a user could view the tape from both sides of the cassette.

Tape head

erase headplayback headhead
The cassette has openings for the tape head and the erase head, as well as for the capstan pinch roller.

Tape transport

capstanpinch rollercapstans
The cassette has openings for the tape head and the erase head, as well as for the capstan pinch roller.

Sound recording and reproduction

recordingrecordedrecordings
If an opening is closed, it prevents any recording on that side.

Audio tape specifications

Audio tape length and thicknesstape speed15 ips
The tape speed is 5.08 cm/s = 2 ips, slightly faster than the Compact Cassette.

Inch per second

ipsinches per second
The tape speed is 5.08 cm/s = 2 ips, slightly faster than the Compact Cassette.

Stereophonic sound

StereoStereophonicstereo sound
Recording and playback in stereophonic sound would be possible with stereo devices, but there were never any such devices manufactured for this cassette format.

Polyester

polyestersUnsaturated polyesteraromatic polyester
The tape itself consisted of polyester.

Telefunken

AEG TelefunkenAEG-TelefunkenSlaby-d'Arco
At its launch, there were 25 pre-recorded music cassettes from Telefunken, Decca and RCA Victor available.

Decca Records

DeccaDecca ClassicsDecca Record Company
At its launch, there were 25 pre-recorded music cassettes from Telefunken, Decca and RCA Victor available.

RCA Records

RCARCA VictorRCA Victor Records
At its launch, there were 25 pre-recorded music cassettes from Telefunken, Decca and RCA Victor available.

Country music

Countrycountry and westerncountry singer
These recordings on the cassettes ranged from country music to The Rolling Stones, the playing time is about 30 minutes per side.

The Rolling Stones

Rolling StonesStonesthe Stones
These recordings on the cassettes ranged from country music to The Rolling Stones, the playing time is about 30 minutes per side.

Phonograph record

vinyl7LP
With a total playing time of about 60 minutes available, this was comparable to a phonograph record.

Deutsche Mark

DMGerman markmarks
The selling price of a pre-recorded cassette was 24 DM.

BASF

BASF SEBadische Anilin- und Soda-FabrikBASF Corporation
For home recordings, unrecorded, blank cassettes were available from Grundig, Telefunken, BASF and Agfa-Gevaert.

Agfa-Gevaert

AgfaAgfa GraphicsAGFA Corporation
For home recordings, unrecorded, blank cassettes were available from Grundig, Telefunken, BASF and Agfa-Gevaert.

Fürth

FuerthFürth districtFurth
Recorded music cassettes were later distributed by Autoplay-Musikkassetten GmbH of Fuerth, Bavaria.