Techno Talk No blame,no shame?

摘要

Picture this scene. You are building a Practical Electronics project, using fresh components bought from reliable suppliers and inserted correctly in the PCB, your soldering is impeccable and after all this effort, the gizmo then refuses point blank to work. You check and re-check your workmanship, then you use a magnifying lamp to seek out minute solder bridges and splashes - all to no avail. You definitely haven't botched anything, so why won't it function properly?Consult the experts Have courage - you may be entirely blameless! Even experts can suffer this syndrome. The late Gerry Wells, former curator of the Vintage Wireless Museum in London often encountered problems of this kind. He put them down to what he called 'dirty electricity', and as he always had plenty of repair jobs on hand, he just set aside refusenik projects and got on with something else. But that won't solve the problem of your present project. Maybe you should look further afield for inspiration. Sherlock Holmes had the right idea, saying: 'When you have eliminated the impossible, whatever remains, however improbable, must be the truth.' 'Fairy nuff, as they say, where do wo go next? Remember when I asked earlier, what on earth is the cause? Maybe the cause is not on earth at all.