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This circuit demonstrates how to use
bootstrapping to seriously boost the output power of the timer. The LC555 can only
put out about 50mA as it is. This circuit can put out at least 200mA and goes to the
rail as well. The LM555 time puts out 300mA, but doesn't go all the way to the rail.
Replace Q1 with a big MOSFET and you can put out big current with few components.
