This high-Q low-pass filter was found in the October 1990 issue of Radio Electronics magazine. The frequency depends on the capacitors used and is on the order of a few tens of hertz.
Author: Newton C. Braga Published:July 5, 2016 Formato:Book and e-Book Pages:...
This circuit can be used in alarms by activating a relay or a current load that depends on the...
This circuit for the 1.5 to 15 V scaled ranges was found in a 1982 documentation, but uses current...