When I pitted for the Dyna-Jet in 1966, we used a bicycle pump and an old Model T spark coil. Now the last time I saw a Dyna-Jet set-up a couple years ago, Mr Capinjola (sp?) had a cart with what looked like a couple scuba tanks. Didn't get a close enough look to see what he's using for the spark set-up. Got to the old Cleveland control line field just a little too late to see him fly. Good thing, I didn't have my ear plugs with me.
We got in about 4 or 5 flights with the D-J powered XF-92A. Third flight ended in a colapsed LG with some attendant nose structure damage. When the plane was rebuilt, the tank wasn't put back at the correct height. D-
Js were VERY sensitive to tank level and fuel flow. 4ht and 5th flights were a bit dicy ecause of aboted engine runs. 6th flight, engine ran too rich, plane caught fire during the take-off run from gas overflow.