Gnome Update
2003-03-31 by toneboy22
Hwy Rory, Well, i finaly got the Gnome VCA working. the emitter resistor in current control tranie was made larger. created the offset needed to get the output buffer tranie working. Before that, the A/D in the VCA would not decay--kinda did a sample- and-hold, and, if the attack knob was rotated clockwise, the voltage went up until it "triggered" then went to zero. Know what it was? feedback resistor. too much current feedback(remember it's a norton op amp). Solution: next size larger feedback R--from 470K to 560K. Got it.....boy, that took a while too!! Now on to the VCF. the signal is so miniscuile, something like 50mv coming off the terminal strip. It's working correctly, but, it's ugly.... thinkin bout rearanging a few parts... will let U all know what happens. will probably post to the PAIAsynth list...so tune in there. may the Gnomes B with U. AFN tb22