This circuit makes use of a 741 single source operational amplifier to measure resistors on a linear scale. The circuit may use as an indicator a common multimeter on a low current range.
This circuit was obtained in an old manual valid for practically any type of operational...
This circuit is found in an American documentation from the 80's. The circuit measures the power of...
This timer produces a continuous sound at the end of the timer set in potentiometer RV1. The...