hello all,
i just put together my first cgs30 bandpass filter (rev2), and can't seem to notice any
resonance at all. i can sweep it just fine, and there is maybe a "slight" ring in there
somewhere... but the resonance pot does nothing.
having built more complicated modules before, i immediately checked my soldering,
followed the schematic...etc to look for obvious errors. i haven't found any yet. i have also
tried 2 different pots for the resonance control, no change.
the parts list on ken's page calls out 2x 100n caps as being used, yet i only see a few 10uf
electrolitics and 22n's noted on my pcb board. there is no more room for caps on here, so
what were those called out for??
also, i am assuming that since i was not setting this up for using the "cx" cap, i just leave
that empty... and i also assume that i am supposed to add a jumper where it appears to be
indicated with 3 boxed symbols next to the beads/elec caps on the lower left side of the
pcb.
any help is greatly appreciated!
-prophei
i just put together my first cgs30 bandpass filter (rev2), and can't seem to notice any
resonance at all. i can sweep it just fine, and there is maybe a "slight" ring in there
somewhere... but the resonance pot does nothing.
having built more complicated modules before, i immediately checked my soldering,
followed the schematic...etc to look for obvious errors. i haven't found any yet. i have also
tried 2 different pots for the resonance control, no change.
the parts list on ken's page calls out 2x 100n caps as being used, yet i only see a few 10uf
electrolitics and 22n's noted on my pcb board. there is no more room for caps on here, so
what were those called out for??
also, i am assuming that since i was not setting this up for using the "cx" cap, i just leave
that empty... and i also assume that i am supposed to add a jumper where it appears to be
indicated with 3 boxed symbols next to the beads/elec caps on the lower left side of the
pcb.
any help is greatly appreciated!
-prophei