I was not that impressed with the microphone that came with my Grundig TK2200 in the spring of 1968. One week before the last day of British Railways steam - 28th July 1968 - I used for the first time my new Grampian DP4 microphone and parabolic dish in combination with the TK2200.

Grampian DP4 Microphone.

Grampian Parabolic Reflector.


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