๐ ๏ธ MAKER GUIDEJun 19, 2026โขโฑ๏ธ 1 min readโข๐ณ๐ต Tested in Nepal
High-Voltage Experiments: Mini Tesla Coil & Wireless Power Demonstration
Demonstrate electromagnetic resonance and wireless gas-discharge lighting safely with BD243C power transistors and 12V DC power from Ghumti Pasal.
๐ ๏ธ BILL OF MATERIALS (BOM)
Required Hardware & Component Checklist
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Estimated Total (5/5 items):
NPRย 350
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NPRย 50
NPRย 20
(NPRย 10 ea)
NPRย 50
NPRย 200
NPRย 30
High-Voltage Experiments: Mini Tesla Coil & Wireless Power Demonstration
Generate high-frequency electromagnetic resonance using the BD243C Power Transistor to wirelessly illuminate fluorescent bulbs for science fairs.
Hardware Bill of Materials:
- Power Transistor: BD243C NPN Power Transistor TO-220
- Resistors: 2x 10K Ohm 1/4W Metal Film Resistor
- Indicator: LED 5mm Red, Green, Yellow Pack
- Power Adapter: 12v 1 Amp Power Adapter
- DC Jack: DC Power Supply Jack Socket Female Panel Mount 5.5 X 2.1mm
Circuit Pinout & Wiring Connections:
| Transistor Terminal | Circuit Connection | Function / Description |
|---|---|---|
| BD243C Collector | Primary Coil (2-3 Turns Heavy Wire) | High Frequency Switched Magnetic Inductance |
| BD243C Base | 10kฮฉ Resistor & Secondary Coil Bottom | Self-Resonant Oscillation Feedback |
| BD243C Emitter | DC Ground (GND) | Return Reference |
| Secondary Coil Top | Free in air (Discharge Sphere) | High-Voltage Resonant E-Field Output |
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