Recent content by Carl Foxmarten

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  1. C

    Theatre special effects: LED hand flash

    And since my current LED is rated for 3V, is that the voltage I should go for as well? (if I used a resistor to limit the current, I'd be essentially wasting some of the power Digi-Key, at least, only has 5V supercaps in a 1F capacity, and if I were going for 3V it'd be somewhere between 4F...
  2. C

    Theatre special effects: LED hand flash

    Hmm. In that case, where would I buy a supercap from then? Preferably online, as there are very few stores in my area that go terribly far beyond hobbyist-level electronics...
  3. C

    Theatre special effects: LED hand flash

    I'd rather give them the option of having multiple flashes per scene just in case it's needed. Would I need a supercap, or do you think I could get away with a regular electrolytic? I'll be experimenting with a "normal" high-brightness white LED later today.
  4. C

    Theatre special effects: LED hand flash

    Our last magic wand has a xenon flash unit from an old film camera in its tip, along with a white LED to show that it's ready to flash again. The only problem with this is that it needs a 4" diameter ball on the end to house all the parts. The problem with using something like this for a...
  5. C

    Theatre special effects: LED hand flash

    Um, anybody? Anyone at all? I'm open to switching to another LED, if somebody can explain how to design the control circuit. I'm just unclear on the control circuit side of the project.
  6. C

    Theatre special effects: LED hand flash

    For a local theatre company I'm building a few special-effects props, including a palm-mounted (likely on a glove) unit that produces a bright flash of light, enough to momentarily overpower the stage lighting. I've picked up a 980 lumen LED that runs at 3 amps and 3-4.2 volts, and I'm...
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