American Flyer Electrical Component for Talking Stations & Semaphore Blocks

American Flyer Electrical Component for Talking Stations & Semaphore Blocks. Used with American Flyer No. 755, 799, 23786 Talking Stations & No. 758A Same the Semaphore Man. This electrical component (a resistor) keeps a small amount of current in a block so the reverse does not cycle. Just enough power to prevent reverse unit from cycling but not enough to move the locomotive.