[Al (astral highway)]

A good friend of mine has a very expensive, bespoke piece of equipment which was manufactured in a small factory in Austria to order.

It doesn't classify as consumer electronics. Just for interest (it doesn't help the diagnosis) it generates <200Hz pulses from a 20MHz clock on board with various divide-by chips and various forms of modulation.

I am very familiar with its construction.

He has asked me to investigate a shock detecting mechanism which disables the device. It is particularly active when the device is mounted horizonatally, but is false-triggering at the moment, in the absence of any shock.

I know from previous examination that it is not an obvious, clumsy mechanical mechanism.

Please note OT for this thread is any discussion of mechanisms that are used in ordnance etc.

Thank you!