Build Your Own ECG-EKG Unit | Nuts & Volts Magazine
DIY ECG with 1 op-amp
Electrocardiography for Cheap: DIY ECG Uses One LM741 Op-Amp, Five Resistors, and 'Penny Electrodes' « Adafruit Industries – Makers, hackers, artists, designers and engineers!
How to Build an Electrocardiogram Machine (EKG) | PCB | Maker Pro
The Do-It-Yourself Electrocardiogram | SpringerLink
DIY ECG with 1 op-amp
DIY ECG Machine On The Cheap
Momnifique: EKG BABY: DIY DOLL AND MACHINE
DIY Propeller-based ECG | Hackaday
DIY ECG Machine On The Cheap
Electrocardiography for Cheap: DIY ECG Uses One LM741 Op-Amp, Five Resistors, and 'Penny Electrodes' « Adafruit Industries – Makers, hackers, artists, designers and engineers!