Doepfer

Hello,

Help needed!

I have a MicroMoog synth I want to use to control my 
Doepfer.  The Micro uses Switch-Triggering for GATE.  If I (now) understand
correctly, that means no voltage but short to ground when a key is
pressed.  I need to trigger the envelopes...

I have tried the A-165 Trigger Modifier.  It does nothing. It does not
detect a falling edge - or rising edge for that matter.

Would the A-175 Voltage Inverter work?  
Would the A-167 Analog Comparator work?
Would the A-166 Logic work?

Is it possible to do this using just 1 module?
What are you folks doing out there?

And while we're on the subject, How do you connect the sections of the A-166
to obtain NAND, NOR, or NEXOR?  Or putting it another way, does it
output a
voltage (logical 1) when no inputs (logical 0) are in use?  

Thanks in advance,

sfrules