Most circuits have some inputs and outputs (external wires) connecting
them to the real world. I want to create electrical noise and subject an
unsuspecting PIC and its inputs to noise. 

I'd love to have a gizmo that can throw some noise into the system in
the lab. It doesn't need to be fancy, just an effective noise-maker. I'm
thinking a bank of relays with long leads to the relay coils (no coil
suppression of course). The leads could then be wrapped around the
inputs to the circuit. I also have in my lab a sample 120V DC motor; I
could run that directly from rectified 120V AC, and switch rapidly
on-off with one of the aforementioned relays...

Does anyone have a favorite way of doing a quick bench test like this in
their lab? Something you've maybe constructed that you'd like to share?


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