MARCONI Air Ministry (A.M.) D Type Morse Key - no overcover. 10F/7373.
The classic MARCONI Air Ministry (A.M.) "D Type" Morse Key, 10F/7373. This is a large ground station key with large contacts and was typically used in RAF control towers during wartime and immediate post war operations.
This key is missing its bakelite overcover, leaving a beautifully engineered large base brass beam key with a lovely fist action.
In operation, the rear set of contacts are normally closed and the front set are normally open. By depressing the key the rear contacts open and correspondingly, the front closes. This key is fitted with a screened lead itself terminated with a standard 6mm Jack plug.
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