What is it / Decoder

Bruce BlackwoodOGR Forum Member

Gang, I have found these decoders in a trade in box. What are they? One is marked as SP 4365 on one side, SD9E on the other. has Red, Black, 2 Purple, Brown leads with the Purple attached to a 8 ohm speaker. The speaker fits perfect in the MTH fuel tank shown. The other is marked GP60 with Red, Black, 2 Purple leads. Are these sound only? Thus for piggy back to a motor control only decoder? Thanks, Bruce in Mount Airy, MD

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7/6/201:59 PM

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