VC resistor. ;) On Fri, May 17, 2013 at 6:56 PM, David G Dixon <dixon at mail.ubc.ca> wrote: >> PNP and NPN resistor. Biasing them changes the gain. No VCA. > > He meant 'transistor'. > > That's "old-school" but it'll work too. It takes a bit more "design" > however. > >