I'm going to build and use an EEG machine for abstract and concrete things! Because why not! I'll be following this guide. Another Arduino based one exists too
Mostly from Digikey and Amazon:
- 1x Instrumentation Amplifier (AD620AN): Digikey, $11.26, Amazon, £13.02
- 2x Quad Op-Amp (TL084CN): Digikey, 2x $0.55
- Capacitors: Various outlets. Asking someone savvy for best practice here. (£5-£20??)
- 1x 10 nF, ceramic
- 1x 20 nF, ceramic
- 1x 100nF, tantalum
- 5x 220nF, tantalum
- 1x 1uF, electrolytic
- 2x 10uF, electrolytic
- Resistor kit: This one is recommended (~$10)
- 2x 12Ω
- 1x 220Ω
- 1x 560Ω
- 2x 22kΩ
- 1x 47kΩ
- 2x 100kΩ
- 2x 180kΩ
- 1x 220kΩ
- 2x 270kΩ
- 1x 1MΩ
- 1x 1kΩ Potentiometer: Digikey, $1.02
- 1x Breadboard: Amazon, $6.99
- Wire kit: This one is recommended, $15
3.5mm audio jack- 2x 9v battery, ~£4
- Electrode gel Amazon, ~$5
- Electrode cups: Ambu neuroline recommended, ~$16 for 10
- Electrode cap or bandana: (Free-£30)
- Electric tape: £1
Total: £48 + Costs for: Capacitors, Reistors, Wires and cap