On 03/04/2017 22:38, "cctalk" <cctalk at classiccmp.org> wrote:
  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. 
I quickly read that and my brain said 'metal doomed switch', which I guess
was also correct :)
--
Adrian/Witchy
Binary Dinosaurs creator/curator
Www.binarydinosaurs.co.uk - the UK's biggest private home computer
collection?