MOSFETs
In the 1980s I was in charge of an expensive instrument that had a DAC controlling a large electromagnet. It cycled from a high current to a low current every second or so. The controller had very large MOSFET power transistors switching about 40A Occasionally when the power wobbled the circuit would become unstable and the MOSFETs would explode. The sound was similar to a large calibre revolver report. As that happened every few weeks, until we sorted out the mains supply, that may be one reason why in old age my hearing is crap.
Biting the hand that feeds IT
