AKG D20
1958 - Microphone
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© Francisco Matias
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© RTP
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© RTP
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© RTP
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© RTP
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AKG D20
1958
- Microphone
High-fidelity cardioid dynamic microphone for use in radio and television broadcast studios.
It uses a single sensitive element, incorporating a moving coil and a diaphragm.
Microphone resistant to the effects of humidity and vibration. Audio frequency response from 30 to 15000 c/s, with a range of plus or minus 3bd maximum; discrimination at all frequencies, between front and rear of 15 db to approximately 25 db; effective output level of -50db m (referred to 1mW and at a sound pressure of 10 dynes/cm2); sensitivity at 60 ohms, open circuit 0.14µ (77 db below 1 Volt / dyne / cm2).
Video: Plans of the AKG D20 microphone throughout the humorous sketch of the Zip Zip program, about a contest on RTP, with Raúl Solnado in the role of presenter and Fernanda Borsatti in the role of contestant.
In Portugal it was used on radio and later on television.
In 1945 Rudolf Görike and Ernst Pless create their first joint project, Phonophot, on June 3, 1946 they license the Akustische und Kino-Geräte Gesellschaft m.b.H, AKG Acoustics, in Vienna (Austria).
It uses a single sensitive element, incorporating a moving coil and a diaphragm.
Microphone resistant to the effects of humidity and vibration. Audio frequency response from 30 to 15000 c/s, with a range of plus or minus 3bd maximum; discrimination at all frequencies, between front and rear of 15 db to approximately 25 db; effective output level of -50db m (referred to 1mW and at a sound pressure of 10 dynes/cm2); sensitivity at 60 ohms, open circuit 0.14µ (77 db below 1 Volt / dyne / cm2).
Video: Plans of the AKG D20 microphone throughout the humorous sketch of the Zip Zip program, about a contest on RTP, with Raúl Solnado in the role of presenter and Fernanda Borsatti in the role of contestant.
In Portugal it was used on radio and later on television.
In 1945 Rudolf Görike and Ernst Pless create their first joint project, Phonophot, on June 3, 1946 they license the Akustische und Kino-Geräte Gesellschaft m.b.H, AKG Acoustics, in Vienna (Austria).
Also in 1958
- 27 of October - Iskander Mirza, the first President of Pakistan, is deposed in a bloodless coup d'état by General Ayub Khan, who had been appointed the enforcer of martial law by Mirza 20 days earlier.
- 14 of April - The Soviet satellite Sputnik 2 falls from orbit after a mission duration of 162 days. This was the first spacecraft to carry a living animal, a dog named Laika. The female dog likely lived only a few hours.
- 25 of November - United Nations Security Council Resolution 130 relating to International Cour of Justice is adopted.
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