Playing with disposable flash...
Posted: Mon Mar 24, 2008 1:38 pm
Hi fellows.
My ignition timing light consists of a aluminium foil wrapped clothespin to grab wire #1, which turns on a neon bulb at every pulse. A photodiode glued to the neon triggers a white led to aim at the timing mark. Works perfect if not under strong daylight.
Nothing fancy to use it for a minute every 2 or 3 years, I don't care how pretty it is.
Planning to try now a disposable camera flash circuit; what modification should be done to decrease the brightness and increase the firing rate capability to ~under 10 per second ? Its power source to still be ~1.5V derived from car battery. A smaller capacity / same voltage capacitor ? A higher power capable inverter ?
Miguel
My ignition timing light consists of a aluminium foil wrapped clothespin to grab wire #1, which turns on a neon bulb at every pulse. A photodiode glued to the neon triggers a white led to aim at the timing mark. Works perfect if not under strong daylight.
Nothing fancy to use it for a minute every 2 or 3 years, I don't care how pretty it is.
Planning to try now a disposable camera flash circuit; what modification should be done to decrease the brightness and increase the firing rate capability to ~under 10 per second ? Its power source to still be ~1.5V derived from car battery. A smaller capacity / same voltage capacitor ? A higher power capable inverter ?
Miguel