This peak detector has a memory to prolong the response. The circuit is from American documentation from the 1980s. The supply does not have to be symmetrical.
This circuit was found in a 1968 RCA documentation. The circuit can be designed with operational...
This resistance meter with the CA3130 was found in an English publication from 1977. The circuit has...
This is the 1968 MR480 commercial cassette recorder circuit. The circuit was fully transistorized and...