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Evil Scientist or Rocket Science? You Decide.

NO RATINGS

What could be cooler than launching model rockets? Launching a lot of them! To control multiple rocket launches relative to one another and put on an utterly amazing backyard air show, Joe designed a circuit (replicated for each rocket) consisting of two 555 timers configured for monostable operation and a high-current FET. A single launch button is wired parallel to all of the circuits. Delay times (from the activation of the launch button to the activation of the FET) are adjusted with a potentiometer and range from a small fraction of a second to tens of seconds.

 
     

MODEL ROCKET LAUNCH SEQUENCER PARTS LIST
For Joe's instructions on how to build your own model rocket launch sequencer, click here.

Amt Part Description Allied Part #
4 100 k ohm,0.25W resistor 832-0717
2 1 k ohm, 0.25W resistor 832-0356
2 200 k ohm, 0.25W potentiometer 754-1131
4 0.01 µF, 50V capacitor 881-5324
3 100 µF, 25V capacitor 852-6560
2 0.1 µF, 50V capacitor 881-5336
2 LM555 263-0133
2 Red LED 431-0193
1 Diode 273-0063
1 FET IRFU3704Z 273-0709
1 6 pos screw terminal 409-0047
1 Switch, SPST 683-0301
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