E-MU SP-12 turbo mod+repair
Got this iconic beat machine in town fora fair price. Battery needed a replacement and all of the 30 push buttons were cleaned with isopropanol. Fader 8 is still flakey.
After that i experimented with the ssm2044 chip and came up with an external control box for both of thi filters.
Cutoff 1,2
Reso 1,2
Env. Depth 1,2