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.
This circuit is from American documentation from the 70s. Transistors are not common today, but...
Found in old documentation, this simple test checks both the polarity and the existence of voltage...
This circuit is from a 1987 American publication called Electronics Handbook. The circuit can be...