This amplifier, from Philips Databook is suitable for automotive applications. The input resistance is 60k ohms and the frequency range is 20 to 20 kHz.
This capacitive switch or approximation relay was found in a 1980s US publication. Power should...
The circuit shown in the figure can be useful for readers who have an oscilloscope that does not...
We got this circuit in a publication of 1987. This is an audio limiter, a circuit that cuts peaks...