This circuit is from a 90s Popular Electronics. It consists of a power source for bass amplifiers of common types at the time that used symmetrical power and separating filters.
We found this circuit in an American 1980s documentation. Other comparators can be used and the...
This circuit was found in Signetics documentation from the 90's. The circuit performance curve is...
The operational amplifier used on this 1968 circuit is not common today. However, the setting can be...