The OS Digital 3-Channel Radio Control System was my first radio control system. To
the top right is an advertisement in American Aircraft Modeler from a 1968 edition.To the bottom
right is a photo of my system, that was first installed in a homemade air boat (Cox .049 used for
power). The transmitter and the receiver both had a dark blue, metal case.
OS Digital 3-Channel
by
World Engines
American Aircraft Modeler 1970
See other Vintage Radio Control Systems here.

Here is a photo of an OS 6 channel radio that went up for bids on
eBay in July of 2008. I've been waiting for one of the 3 channel models.

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