In a message dated 4/3/06 2:27:49 AM Eastern Daylight Time, tesla@xxxxxxxxxx writes: >I did some tests and >compared the spark length using a sync rotary, compared >to a triggered sync static gap. The triggered sync static cap >had about a 5/8" spacing. John- Any more details or photos of your triggered static gap? -Phil LaBudde
Phil, I don't have any photos. The design was based on teh work of Mark Metlicka a number of years ago. We used a lamp dimmer (actually a motor controller) to vary the triggering phase. A GM ignition coil was used for the high voltage to the trigger electrode. The gap itself was formed from two round discs of metal 5/8" apart with the flat faces facing. The 1/8" wide pointed tungsten electrode aimed towards the center of the gap. I'll see if I have more details in my notes. The gap was extremely loud and bright. Much much louder than a rotary. Many others on this list had built similar gaps back then. I assume they're still on the list, not sure though.John