Doepfer

Hello! You need at least one signal to get the logic module to 
output a signal. And you'll need at least 2 signals at the inputs to 
make it work as a logic module. On the lower part of the A166 (the 
inverter): If nothing is connected to the A166's inv. inputs the 
outs are always high. As you probably assumed NAND, NOR, NEXOR are 
simply inverted AND, OR, EXOR signals. Not sure wether I get your 
point so I hope that helps.
Never used a Switch-Trig in my system. But the A165 should be the 
way to go. Have you tried feeding a definitely working trigger 
inverted by your A165 to trig an A140? Just to make sure that your 
inv. works fine?
Regards, Ingo

--- In Doepfer_a100@yahoogroups.com, sfrules <sfrules@t...> wrote:
> 
> 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