We often think of analog computing as a relic of the past, room-sized monstrosities filled with vacuum tubes doing their best ...

Martin Lorton] has a vintage Harmon 4200B selective voltmeter that needed repair. He picked it up on eBay, and he knew it wasn’t working, but it was in good condition, especially for the ...

Any effort expended to reduce the number of test patterns or runtime on the tester pays dividends many times over.