This circuit converts BCD inputs to analog voltages. The operational amplifier must be powered according to the desired output voltage range. The circuit is from documentation from the 90s.
This circuit was found in Electronics Now. With it the dialing signals of a telephone are...
This traditional configuration of a white noise generator that uses the junction of a transistor with a...
This circuit generates an accurate 1 Hz signal controlled by a crystal. The circuit is from 1995...