There are at least two made in the US, which may or may not help,
depending where you are. Atlas and Bowser come to mind.
Biggest disadvantage is the short length, 9 inches which is 62 scale
That works for most older diesels and some steam engines such as Model
Power old-timers and old Bachmann Prairie/Consolidation/10-wheeler.
Not suitable for newer steam and diesel engines, but many folks have
used the mechanism at the bottom of the turntable pit to drive larger
Advantage is low price and good indexing.
I think it was Germany, perhaps not now.>
It has a built in "Geneva drive" with nylon gearing that has realistic
speed with their motorizing kit. Old ones indexed to 12 positions,
newer ones perhaps 24.
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