Concord DBA-9 Noise Reduction System
The Concord DBA-9 is a noise reduction system, it was introduced by Concord in 1973 and discontinued a year later.
The DBA-9 is equipped with.
Historic events
1973 TDK introduced a replacement for chromium dioxide and named it Avilyn.
1974 DuPont introduces chromium dioxide (CrO2) cassette tape.
Features of Concord DBA-9
Similar to Concord DBA-9 from the period 1973 - 1974
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