I don't have a 909 but I made this by comparing to ReBirth. I tried to limit the controls to how they are on RB but made the decay a bit longer.
The timing is not rock solid but this will be fixed when we get a phase resettable sine oscillator.
909kick.axp (2.7 KB)
inverter.axs (3.1 KB)
inverter_s.axs (3.1 KB)
goodanalkickvoice.axs (16.5 KB)
edit: I also chose to include a soft clip "drive" instead of the "level" which is a pretty boring control anyway.