This is a precision half-wave rectifier, suggested by Texas Instruments. Diodes are commonly used, and resistors can have signal values. The power supply must be symmetrical.
Suggested by General Electric in a 1965 publication this circuit uses a light bulb. Can be changed...
The oscillator shown in the figure generates a 1 kHz tone that is reproduced on the speaker with...
The purpose of this circuit is to restore the 0 V black level of an analog TV video signal at the...