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.
This stage was found in a 1964 Electronic Design. The transistors are of the time and the shape of...
This circuit with the known PLL 567 can be found in other versions in this section and in this...
In this circuit, the LED Will blink in a presence of na áudio signal in the input. Gain is...