> Does anyone else have the new 177-2 compact foot controller module
>
> I've been using the original foot controller module, with a
> continuous pedal and a double foot switch, for 11 years, and got
> this one to save space. But I'm having two big problems with it:
>
> 1. When the footswitch output is patched into an S&H module, it
> triggers both when pressing and releasing the pedal, or both at
> the onset and release of the gate signal. The original pedal
> would trigger only with the onset of the gate. Is this a real
> difference with the original 177, or is mine defective
>
> 2. Again when patched into an S&H module, if I press one
> footswitch, it sends signal out BOTH outputs. But very
> confusingly, when I tested this by patching the footswitch
> outputs into the Trigger Modifier module, this doesn't happen; it
> appears there to be working correctly. But then when I move the
> outputs back into the trigger input of the S&H module, I get this
> wrong behavior again. I even tried moving the modules into a
> different case to see if there were some power supply issue; even
> alone in an otherwise empty case, I get the same results.
>
> Any ideas
>
> thanks,
> Ernst

I suppose that it has to do with the bouncing of the contacts of your foot
pedal (i.e. that releasing the pedal is not a clean on/off transition but a
sequence of on/off/on/off transitions until the final state is reached). If
the A-177-2 is used to switch a signal (e.g. by means of the A-150) this
causes no problems but if the foot switch is used as a trigger (e.g. S&H or
clock circuits) this may lead to a problem. Especially older contacts may
generate a lot of bouncing. Maybe adding a capacitor to the inputs will
solve the problem. They would work like low pass filters that filter the
bouncing pulses. One has to try it out as it depends upon the bouncing
behaviour of the contacts. I'd start with ~ 100nF connected between GND and
the foot switch inputs.

Best wishes
Dieter Doepfer