I dug out what is possibly my oldest toy (in that it was actually bought for me when I was a kid and I've still got it!). It is a TN Toys Douglas DC9 airliner. This amazing toy is battery operated and goes through a repeated cycle of taxi, stop, open door, lower steps (at which point a stewardess appears in the doorway), raise steps, close door, rev up engines (which pulse with red light as a jet engine sound is made), then taxi again. All achieved without a microprocessor and, it still works! I really must post a youtube clip of it! Thought people might like to see it.
Woodsy says: originally sent to me November 2011. Slowly getting through all my emails. Sorry for the wait.