[ARC5] LS-3 Speaker

[Meir WF2U]

The BC-348 is an airborne receiver. There were no speakers used on aircraft, from obvious reasons, like it was a bit noisy there... The crew used headsets, through which the crew interphone was also operating. No airborne installation manual calls out any speaker for the system. With that said, a BC-348 used by perhaps in a temporary ground control station may have been used with any speaker that was available if speaker operation was feasible in a given environment. The LS-3 speaker was used officially with the BC-312 and BC-342 which are ground equipment.

73, Meir WF2U
Landrum, SC

On March 8, 2015 3:43:18 PM EDT, Roy Morgan <k1lky68 at gmail.com> wrote:
>ARC-5 folks,
>
>Yesterdays hamfest netted an LS-3 speaker.  This was used with the
>BC-348 and other receivers of that era.  About 9” square by 5” deep,
>lend with felt, and very heavy.  This one has the original speaker and
>matching transformer.
>
>I can’t find any data on the thing, either here in the archives, or
>online.  Does anyone know the input impedance or have any data sheets
>on the thing?
>
>Roy
>
>
>
>
>
>Roy Morgan
>k1lky68 at gmail.com
>K1LKY Since 1958
>
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