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noninvopamp:1mpulldown
R9 (pulldown and highpass)

1M pulldown resistor R9 provides the ground reference for the OP-amp. Later this will become a 1st order highpass filter with the coupling capacitor C1.

next step: Test input signal from a piezo headphone

noninvopamp/1mpulldown.txt · Last modified: 2014/05/03 01:27 by berndporr