This is a microcontroller based module that combines an Attack-Release Generator with a delay. It can be built in either +/-12V or +/-15V systems without any modification, and other than the pre-programmed microcontroller, uses no hard to find parts. When used with the expander from BMC003, it has voltage control over all of the parameters.
This is for a PCB (including programmed microcontroller) only suitable for multiple formats.