Hands-on: Heater Circuit
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Transcript of Hands-on: Heater Circuit
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Hands-on: Heater CircuitKit includes:
3 9 Volt batteries (for flight only)1 Perf Board3 Ceramic Resistors (4 Ω @ 5W)3 9 V connectors1 White wire1 Blue wire1 Red wire1 Black wire
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Hands-on: Heater Circuit1. Set out kit
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Front: Back:
Hands-on: Heater Circuit2. Layout Resistors on Perf Board
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Hands-on: Heater Circuit3. Fold the leads of two of the resistors and solder them together as shown:
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Hands-on: Heater Circuit4. Clip the leads:
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Hands-on: Heater Circuit5. Repeat steps 3 and 4 so the resistors are soldered in series, using the leads of the resistors
4Ω
4Ω
4Ω
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Hands-on: Heater CircuitYour circuit should look like this:
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Hands-on: Heater Circuit6. Twist all the Red wires from the 9V connector together and solder them to the single red wire in your kit
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Hands-on: Heater Circuit7. Twist all the Black wires from the 9V connector together and solder them to the single black wire
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Hands-on: Heater Circuit8. Check continuity for all “-” and “+” terminals to each other
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Hands-on: Heater Circuit9. Check continuity for all “+” terminals of the battery with the end of the single RED wire
10. Check continuity for all “-” terminals of the battery with the end of the single BLACK wire
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Hands-on: Heater Circuit11. Put electrical tape on solder joints
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Hands-on: Heater Circuit12. Solder the single RED wire from 9V connector to one end of the resistor string and the WHITE wire to the other end of the resistor string
4Ω
4Ω
4Ω
*Green boxes are battery connectors
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Hands-on: Heater Circuit13. Solder the switch in between the black wire and the white wire
4Ω
4Ω
4Ω
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Hands-on: Heater Circuit14. Test your finished Heater by turning on the switch and putting your finger on the resistors – if they get warm, you’re done. If they don’t, check continuity at the following points:
4Ω
4Ω
4Ω