The Amp Garage

Not exactly an L-Pad. It is a fixed shunt, variable series resistance attenuator. It doesn't do proper impedance matching, but apparently that's not a big problem. The reason for not using an impedance matched L-Pad? Well, because that's not how Ken Fisher did it... :wink: Dont think. Just clone......

I have understood that the Airbrake is an L-pad attenuator with one fixed resistor and one tapped at convinient locations. Question: why not use two tapped resistors to get better impedance match? Calculating the values is easy: http://www.lalena.com/Audio/Calculator/LPad/

Pekka