On Mon, Apr 3, 2017 at 10:16 AM, Richard Sheppard via cctalk <
cctalk at classiccmp.org> wrote:
May depend on the model, but mine has a spring under the plastic reset
button in the top of the case and one of those metal domed tactile switches
on the PCB.
This matches my recollection of the system I had. The type of metal domed
switch made famous by the Atari 2600 joysticks.