We found this circuit in the January 1978 issue of Radio Electronics magazine. The integrated circuit is from that time and is powered by a 9 V battery. The signal must be applied to an amplifier.
Found in a 90s Radio Electronics this circuit requires precision resistors in the dividing...
Mouser Electronics is already providing new MOSFETs EF SIHx28N60EF of Vishay series for voltages...
The LMV321 is a low voltage operational amplifier from ON Semiconductor. The following diagram,...