This isolation circuit for audio signals was found in the August 1992 issue of Radio Electronics magazine. The circuit can be applied to other operational amplifiers.
The circuit shown in figure is based on the ST Microelectronics TDEO0160 (www.st.com) and consists of...
This circuit was found in a 90s Popular Electronics. The frequency is determined by R3 and C1 that...
The integrated circuit used in this amplifier is not common today. The power can be between 4 and...