This digital signal attenuator was found in a 90s Electronic Design. The circuit operates at frequencies that are determined by the characteristics of the attenuator circuit.
In the figure we have the typical configuration of a sinusoidal audio oscillator with twin-T. The...
This circuit that uses only common transistors can operate between 60 and 130 MHz, depending on...
This RCA / GE circuit from the 90s can be applied to any modern operational amplifier. The number...