We found this circuit in an old documentation. The integrated circuits used are specific to produce effects and do not admit equivalents, being currently difficult to find.
Found in RCA documentation from the 90s, this circuit uses components from that time. CA3019 is...
This capacitor leak detector was found at Popular Electronics in June 1991. The magazine no longer...
This circuit allows the listening of undersea sounds using a special transducer. Operational...