Projecttitel:cgs75 Serge VCS in MOTMStatus:Startdate: 28.02.2014Duedate: 02. July 2014Manufacture link: http://cgs.synth.net/ |
related articles:
http://electro-music.com/forum/post-281432.html
BOM:
Part | Quantity | my info |
Capacitors | ||
---|---|---|
47pF | 9 | mlcc |
1n | 2 | wima mks |
10n | 2 | wima mks |
22n | 1 | wima mks |
100n | 6 | wima mks |
10uF 25V | 2 | |
47uF 25V | 1 | |
Resistors 1% Metallfilm | ||
100R | 1 | |
330R | 2 | |
1k | 2 | |
1k8 | 1 | |
2k2 | 3 | |
8k2 | 1 | |
33k | 2 | |
68k | 1 | |
82k | 5 | |
100k | 18 | |
150k | 1 | |
200k | 1 | |
220k | 4 | |
330k | 3 | |
470k | 2 | |
600k | 1 | |
820k | 4 | |
1M | 9 | |
10M | 2 | |
100k trimmer | 1 | |
50k lin pot (FALL,RISE POT | 2 | |
20k lin pot for processor | 1 | |
100k lin pot (CV-pots) | 2 | |
Semi's | ||
LED | 1 | |
1N4148 | 6 | |
2N3904 | 3 | |
2N3906 | 3 | |
5V6 400mW Zener | 1 | |
TL071 | 1 | |
TL072 | 2 | |
TL074 | 1 | |
LM3900 | 1 | |
Misc. | ||
Ferrite Bead | 2 | |
SPST switch | 3 | |
0.156 4 pin connector | 1 | |
CGS75 PCB | 1 | |
Panel Bridechamber | 1 | |
PotBracket - own | 1 |
Wiring:
ac out | ac out jack |
bo | bi-polar output jack |
out | out jack |
trig in | trigger in jack |
cy sw | (x 2) cycle switch. Switch connects these together for cycle mode |
end | end out jack |
rrw | rise rate wiper |
CW end of rise rate pot connects to +ve | |
CCW end of rise rate pot connects to 0V | |
frw | fall rate wiper |
CW end of fall rate pot connects to +ve | |
CCW end of fall rate pot connects to 0V | |
exp | exponential cv jack |
rise cv | rise cv jack |
both cv | both cv jack |
in | input jack |
swf | (x 2) fall switch. Switch connects these together for exp. response. |
swr | (x 2) rise switch, Switch connects these together for exp. response. |
rw | rise pot wiper |
rccw | rise pot counter-clockwise |
rcw | rise pot clockwise |
fcw | fall pot clockwise |
fccw | fall pot counter-clockwise |
fw | fall pot wiper |
fcv | fall cv jack |
pout | processor output jack |
pccw | processor pot ccw |
pcw | processor pot cw |
pr1 | processor input |
pr2 | processor pot wiper |
Adjustments on the VCS board are set to obtain a 0 to +5 volt level when the unit is cycling, producing a 100Hz triangle wave. An oscilloscope is required for this adjustment. In an oscilloscope is not available, adjust for the least distorted sounding waveshape.
Schematics:
keep attention on the Processori input jack with 200K resistor at the jack switch to +V.
also make sure you have all 3 "bridges" correctly filled with a piece of wire or rest from a resistor leg, otherwise the module dont work correct.