I think that's the guy! I remember a write up in a modeling mag, probably M.A.N. , some time during the early 80s about a glow plug replacement that would let a glow engine run on model diesel fuel. I vaguely remember that the plug had a copper or brass element and there was some claim about a catalytic reaction. This struck a responsive cord because I was driving a diesel Rabbit pickup back then and it made me think of the pencil element diesel "glow plug" for heating the fuel charge in the precombustion chamber at cold start.