RSF KOBOL EXPANDER VCO WAVE SHAPER - redrawn by mark verbos
[email protected] October 19, 2000 100k
from osc. core
100k
+
-
270k
324
200k
+
100k 220k
to VCO mixer
270k
39k waveshape control -
3
324
220
+
+
++ 10k
shape trim -
82k
100k
100k
-
+
2
-
+ 3080
-
3
5
TL082
10k
-
220
+
56k
2
324
+
waveshape 100k CV in
330k
1k
3080
-
5
VCO out
100k 15k
1M
+
+
62k
27k
-
56k
324
-
+
shape trim -
680k
3
+
2
-
TL082
-
-
3080
220
220k
100k
220
10k
+
+ 3906
5 68k
10k
27k
1M
100k
-
47k
324
+3
+
3080 5
2 220k
PW mod hard wired from env. 2
220k
16.2k
-
27k
180k
56k
324
+
NOTES: all OP-AMPS powered by +/- 14.5 volts except TL082 powered by +18(++)/-14.5 waveshape sweeps continuously from triangle to saw to square to pulse you may want to eliminate the level VCA and replace the 3080 with a regular OP-AMP I take no responsibility for parts being the wrong values as the original schematic was illegible all pots were unlabeled but I think 100k linear will work
+
+ 47.5k
33k
330k
-
-
+
180k
VCO level CV