Laser dalek

Discussion in 'The Projects Forum' started by Lee HAWKES, Aug 22, 2014.

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  1. Lee HAWKES

    Thread Starter New Member

    Aug 22, 2014
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    Hi everyone, I'm new here and rubbish at electronics so I need a little help, I have an r/c dalek which lights a blue LED on the end of its gun when it says exterminate, I successfully replaced the blue LED with a low powered laser (5mw), the laser is powered by its own battery's (two 1.5v AA), the power from the dalek now passes through a resistor (390ohm) and on to a transistor (bc 548) which in turn connects the laser to the battery's, but if I use a more powerfull laser (200mw) the dalek will not turn it on, I think because of the increased power that maybe the transistor needs to be changed but I'm not sure and I haven't a clue as to which transistor to use, the more powerfull laser operates off the same battery's as the weak one, can anyone help?
     
  2. shteii01

    AAC Fanatic!

    Feb 19, 2010
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    Need info on the laser. So far you only told us that it is 200 mW.
     
  3. joeyd999

    AAC Fanatic!

    Jun 6, 2011
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    So, you have a toy onto which you wish to install an actual weapon that can produce real damage -- like to a curious child's retinas?

    This will not end well...
     
  4. bertus

    Administrator

    Apr 5, 2008
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