AUDIO ENGINEER

HI all does anyone out there know anything about AUDIO ENGINEER made by ELECTRO -NUCLEAR DEVICES. It was made in the 50s . There was a small article in CTT in July 2001 but it didn’t contain info on how to operate or set up Thanks

Here is a website that shows all the pages of the origional instructions.

http://toyconnect.blogspot.com/2010/10/marx-audio-engineer.html

I have an audio engineer and it works well with my conventional Lionel trains, although I modified it so that the track is controlled by a relay.

I bought an Audio Engineer a few summers ago that was supposedly MIB, but I have never done anything with it. The instruction sheet with mine is slightly different than the one at the link, and there is no mention of the circuit breaker.