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HMAS Brisbane : Combat Data Centre : Loudspeaker
Technology
Maker: Electronic Research Associates, INC
Loudspeaker in rectangular metal case with rounded corners at the top. The front panel is a flat alloy sheet with a circular cut-out for the speaker. Below is a small knob to increase volume (knob mis...REL32982.023
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HMAS Brisbane : Gun Plot Room : Loudspeaker
Technology
Maker: Electronic Research Associates, INC
Loudspeaker in rectangular metal case with rounded corners at the top. The front panel is a flat alloy sheet with a circular cut-out for the speaker. Below is a small knob to increase volume (knob mis...REL32980.037