Order the BioAmp v1.5 Kit from Tindie and you'll receive a PCB just like shown below.

This PCB is the starting point of our build, solder components as per the instructions below to get your own BioAmp v1.5 ready to record BioPotential signals. Keep this interactive BOM link handy to help you with the build process.

We will start with all the resistors first, for this step you solder a 1k resistor at R11 as shown in the interactive BOM. The image below shows the exact placement.

Solder 6 x 10k resistors at R1, R2, R5, R6, R7, and R8.

Solder 2 x 100k resistors at R9 and R10.

Solder 2 x 220k resistor at R3 and R4.

Solder 100nF disc capacitors at C1, C3, C4, C5, and C6.

Solder 47uF capacitor at C2, C7, and C8.

Solder LED at D1.

Solder IC socket at U1.

Solder DPDT switch at S1.