This circuit consists of two stages that each shift 180 degrees the signal. The circuit was proposed by Siliconix in a 1966 publication. Equivalent FETs can be used.
Figure bellow shows how the 4510, a divide-by-1U, up/down counter with three-state outputs is...
This circuit was obtained from the Radio Electronics magazine of April 1991. The circuit is based...
This digital signal attenuator was found in a 90s Electronic Design. The circuit operates at...