Troubleshooting an Arp Sequencer

[Ingo Debus]

Jim Johnson wrote:
> 
> Nah, the switch is already debounced. It is only when the jack panel board
> - an entirely passive board, nothing but jacks and an LED - is connected,
> that the switch bounces. And when I unsoldered the jack that connects to
> the circuit, the problem went away, which is why I suspect parasitics in
> the jack. Which is wierd.

An open MOS input perhaps?

Ingo