We found this version of the automotive tachometer in a 1980s publication. Variations from other sources appear elsewhere in this section. The indicator is a 0 to 1 mA milliammeter.
The figure shows how to implement an OR function with two inputs, using a relay. The relay...
Found at Popular Electronics this receiver is used with a transmitter for quadrature-coil signals....
March 2017 - The integrated circuit division of IXYS is presented the integrated relay that makes...