Found in the September 1992 issue of Radio Electronics magazine. This circuit generates pulses that are determined by C3. The circuit has output pulse intensity and timing adjusted by R6.
The presented circuit is suggested by Texas Instruments (www.ti.com) in its Application Report...
This circuit with an industrial standard 4-20 mA interface uses a KPZ20G pressure sensor but can...
This circuit takes advantage of the inductance of the coil of a high-impedance phone to form the...