This circuit supplies a continuous voltage at its output, which is the peak value of the alternating input voltage. The circuit is from a 90's EDN, making use of Maxim integrated circuits of the time.
The original transistor for this circuit from a 1973 publication is germanium, but a silicon...
This VFO was found in a 1980s documentation. The central frequency is given by the crystal and the...
The sensors in this circuit that triggers when the temperature goes out of a certain range are...