DOES your signs stand out in the crowd? Does not simulate. Left A.C. generator is pulsing auto sparkplug coil secondary input. This can be battery powered. Letters are painted on glass sheet with shellac in script type to connect letters together. When shellac is is sticky we dust with fine brass fillings. When dry, we clean up now metal letters to send induction coil current through. Connect up and turn on.
If explosion and fire, may be combustible and flammable materials around. If pyrotechnics, adjust voltage, letter line width, or brass coatings. If blue sheet of sparks jumping particle to particle the sign is working properly. Intermittent current gives longer battery life.
Wood alcohol will remove letters to change sign or get rid of evidence. Flame on.
