Jinx wrote: >> Is the trigger transformer close to the bulb? >> > > http://home.clear.net.nz/pages/joecolquitt/flash_proto.jpg > > I've super-imposed the tracks. It's a fairly simple layout to follow > A couple of notes: Those tubes are polarity sensitive I've found. In my similar design, I used a 470p / 1KV cap in series with tube trigger The transformer is incorrect - swap the two end connections David... -- ___________________________________________ David Duffy Audio Visual Devices P/L Unit 8, 10 Hook St, Capalaba 4157 Australia Ph: +61 7 38235717 Fax: +61 7 38234717 Our Web Site: www.audiovisualdevices.com.au ___________________________________________ -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist