So, waaay back in college, I was shown the circuit below, and told that the input impedance, Z, is always equal to R if L*C = R^2. That's true, and can be proven -- so it's kind of a universal 1st-order diplexer.
I was told it's called "Slepian's Box" or something similar -- repeated web searches haven't coughed up anything that matches that.
So -- anyone know anything? Does this thing have a name? Does the name "Slepian" mean anything other than a woman's reproductive rights activist?
TIA...
o---------o-----------------. | | A .-. .-. | | | | | | | | R | | R | '-' '-' | | Z | | | | | | | | | | | C| --- | C| L --- C V C| | | | o---------o-----------------' (created by AACircuit v1.28.7 beta 02/28/13