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Knowlege is power

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Everything posted by Knowlege is power

  1. To powerful, to fast. I think the main reason is that a lightning strike is a few billion volts and only last for a fraction second, id like to see someone try to harnass the sort of power without blowing the absolute crap out of something.
  2. Thanks This is the Circuit I plan to use partly my design and partly not. Diode pot configuration alows for independant control over the high and low pulse duration and R2 ajust the over all frequency. havent decided on the best valuse yet.
  3. Thanks for the help, so using the transistor mentioned or something similar, with the 555 pulse to the base and the emmiter to the base of the power transistor, or would i need a slightly more complex cicuit. If someone tells me how to post a picture that i have on my PC, i will post a schematic of the circuit that i am going to use. also i have read that the NE555 is only good up to 50KHz is this true. thankyou.
  4. I buit a driver for an ignition coil where the out put goes directly to the base of a 2n3055 transitor to triger the pulses through the coil and it dosent work.The spark is so pitiful that I'd fell safe putting the HV wire in my mouth (not recomended) The 2n3055 transistor is rated at 15A and the maximus curent draw from the ignition coil acording to ohms law is about 7.5A 1.6 ohms, 12v only half of what the 2n3055 can handel so it should not have blown, could this be because the pulse from the 555 is not powerful enough to make the transitor fully conductive, and using a transitor to amplify the pulse make it work. if anyone can help it would be much apreciated. also if i have a picture on my PC that a want to display in a post how do i go about it.
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