Acknowledgements ################################### These materials were written by: * Alexandra Leighton * Joana Neto * Jakob Voigts * Aarón Cuevas López With material from: * Joana Neto, 2018; Materials and neuroscience: validating tools for large-scale, high-density neural recording, 2018. * Jon Newman and Jakob Voigts, 2017; Intro to Chronic Ephys (presentation at `TENSS `_) * Mitra Javadzadeh, 2017; Building an analog ephys recording system (practical exercises developed for `TENSS `_) * Circuit Simulator version 2.4.6js. Original by Paul Falstad, JavaScript conversion by Iain Sharp * Breadboard circuit illustration made in Fritzing With thoughtful feedback from: * Antonin Blot * Filipe Carvalho * Jon Newman * Cecilia Herbert