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.
Figure 1 shows a hal-wave voltage doubler operating with the Power-supply voltage. Output current...
This circuit is from a Radio Electronics from February 1966. The circuit is of a type that was...
This circuit was published in an Italian magazine Radio Elettronica in February 1976. The...