Ed, I can't believe it. You have made a perfect duplicate of the Gern 78B Flux Roaster. You even have details that are hidden, and a wide load at that.
A real fun project. We will have to have Wayne build a 31C. That should be about right for his time frame. I have some old HP cartridges.
Charlie
I think we are getting things mixed up. I was under the impression that the 7B was too big for a railroad flatcar. This roaster clearly states it is a 78B right on the side, which as everyone knows, is basically a model 7B but with solid state electronics, enabling the roaster to be built in a smaller casing, unfortunately is also more susceptable to moisture getting into the worm drive controller.
All correct, Dave, except the last point. This was true for early production models of the 78B, but re-designed GERN Flux-O-Seals have solved the moisture susceptibility problems. Field technicians have already upgraded all but 3% of the earlier models that are in service.