Re: The "good"old days
We had the GEC 4020 assemblies with thermite charge markings (no actual thermite charges though), these used core store so an initiated thermite charge was used to take them above the Curie point and effectively zero them. Would have been in the Nimrod AEW3 if it had been continued with, although the computer in the real systems would have been a 4060 to make it a bit faster.
If memory serves the whole shebang was contained in a pretty thick walled unit to try to contain the 3,000 C temperatures for long enough to comprehensively knacker things, meanwhile the Nimrod crew would have been doing whatever they did when a forced landing behind enemy lines was on the cards.
Airshows aren't the same now the Cold War is over...