This circuit is from Motorola's Linear Databook from 1990. The integrated circuit and transistors are uncommon, but the circuit can be assembled with equivalents.
This AC amplifier using the 741 operational amplifier uses a dual supply from 5 to 12 V. The input...
This circuit indicates variations in room temperature around a few degrees on a bargraph scale. The...
This optical pass-through shield can be used in various applications, such as object sensing or...