CGS364 VCA
ELBY Designs - Laurie Biddulph
9 Follan Close, Kariong, NSW 2250, Australia
3 of 3
CGS364 VCA – BoCGS BOG & MARSH
Constructors should refer to the printed
along with the
for the current value of all components and
Construction Notes
for general PCB assembly guidelines.
Some resistors and capacitors associated with the CV and SIGNAL inputs are
not required in the BoCGS BOG and MARSH builds and may be omitted from
the PCB if desired (image below shows these components removed).
The SIGNAL inputs are, by default, AC coupled and so are only suited to audio
type signals. If you wish to control CV type signals then replace C4 with a wire
link.
The CGS364 requires a matched NPN transistor pair in the Amplifier Stage at
Q5 for optimum performance. Please refer to
for
further details.
