This circuit was found at Electronics Now. It can be used as a shield detector for dial signals in an automation project.
From an input signal, and using an unusual current source, this circuit generates a ramp, that is, a...
August 2016 - It can be obtained from Mouser Electronics thenew broadband ADCs ADS127L01 from...
E) The interesting thing about this circuit found in a 1985 English magazine is that it controls the...