but in the ADC case we’re interested in the DC component of a low-frequency signal. Frequency range and AC/DC voltage offset will matter for the practical implementation of the filter ...

The cap in question is part of the guitar’s tone circuit, which along with a potentiometer forms a variable low-pass filter. A rich folklore has developed over the years around these circuits ...

Since many amateur transmissions are lower in frequency than TV and FM signals, a high-pass filter can be fitted to the receiver to prevent the low frequency amateur signals from reaching it and ...