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 was found in an Electronics World magazine from 1990. The circuit can be mounted...
This increased voltage regulator is from a 1980 publication, but it can be mounted using a BD136...
The outputs of each switch position are determined by the zener voltage plus the drive voltage of each...