[sdiy] RC filter questions + SPICE RC filter simulation questions

[Ingo Debus]

Am 16.04.2010 um 23:54 schrieb Neil Johnson:

> "The unusual RC circuit on the rear cover gives a maximum voltage  
> gain of just over 15%. Ordinary RC circuits give less than unity  
> voltage gain. "

I'm lost here. Isn't a voltage gain of 15%, or 0.15, clearly lower  
than unity?

Or does he mean 1.15? This would be 115%, no?

Ingo