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. Author manuscript; available in PMC: 2016 Mar 11.
Published in final edited form as: Conf Proc IEEE Eng Med Biol Soc. 2011;2011:5400–5403. doi: 10.1109/IEMBS.2011.6091335

Fig. 2.

Fig. 2

The dual PCB board design. The large board contains all elements of the circuit excluding the transistor: the amplifying resistor, lowpass power supply filters, output buffer and highpass filter, and input/output components. The ribbon cable attaches the transistor to the rest of the circuit. The enlarged image on the left clearly shows the copper fingers used to make pressure contact with the organic TFT underneath.