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.
We found this circuit in a Electronics Hobbyst from 1977. The circuit is indicated to adapt the...
June 2017 - These new AVX capacitors are suitable for filter applications, considerably reducing...
This powerful pushbutton uses a power MOSFET. We found it in a Popular Electronics magazine from...