Found in a 1965’s Electronic Design, this circuit operates with a voltage of 1.5 V. The relay can be of a reed relay or other type.
The circuit shown is from an old English publication from 1965. We can adapt the circuit to work...
If the reader needs to monitor a voltage and does not want an expensive or sophisticated solution. In...
August 2017 - Mouser Electronics is in stock with the PGA460 and PGA460 Q1 ultrasonic processors...