[sdiy] TR-808 Kick Drum modelling explanation

[Richie Burnett]

> Here's a 606 bass drum having its trigger pulse swept from about 0.2ms to
> around 6ms.
> http://www.colinfraser.com/606-trigger-sweep.mp3

Thanks for the MP3 Colin.  It's interesting how the filters in the 606BD 
circuit start clipping against the supply rails when the trigger pulse width 
ventures much above 1ms.

I guess they designed the filters to max out their dynamic range with the 
intended 1ms wide trigger, and they can't cope with the increased energy in 
wider pulses without clipping.

-Richie,