The integrated circuit used in this' 90s amplifier is not very common today. The supply is 24 V, the gain is 50dB and the input resistance is 100 k. The circuit is from an old circuit manual.
This low frequency oscillator with an operational amplifier of type 741 has adjustment of the mark...
The circuit shown in the figure is suggested by National Semiconductor and makes use of an...
This circuit was obtained in a technical documentation from 1997. In the event of a power failure, it...