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Topic: Help needed with step-up transformer (Read 2288 times) previous topic - next topic


May 30, 2018, 07:10 am Last Edit: May 31, 2018, 04:48 pm by ReverseEMF
How about these ideas:
  • Use a spark gap to reduce the voltage on that microwave transformer.  By varying the gap, you might be able to vary the voltage drop, and control the energy delivered to the wood.  Make sure to do this in a well ventilated area, because of the potential for ozone -- but, you probably already have that in place, because of the smoke ;)
    Forgot to mention: A spark gap can, also, produce UV and even X-Rays [apparently], so don't look at it, and keep your distance.
  • Use one or more filament light bulb(s) as series, voltage dropping resistor(s).  Light bulbs are great in that they can dissipate a large amount of power. They might even function as crude voltage regulators.  The more current that flows, the hotter the filament gets, causing a greater voltage drop across the filament, thus acting as a voltage regulator [again, probably quite crude].  There will, likely, be an equilibrium point.  It may take a bit of experimentation to find the right combination of wattage of light bulb(s).  Also, they may not react fast enough to be useful--only experimentation will tell.
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