pdf SD-69909-01 i8D1 Aug79 - 4A Speakerphone Popular
By Paul F 1352 downloads
SD_69909_01_I8D1_4ASpkr.pdf
Full set of schematics for the type 4A speakerphone system, including connections to compatible phones. SD-69909. See BSP 512-700-100. Contributed by Bruce Lane.
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