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My neighbor asked for my help with wiring an induction motor that he got for free, despite my lack of experience and knowledge in this field. I didn't even know how to connect the capacitor (which I told him), but he still insisted I should look it up on the Internet and do it (he probably...
That may be so, but the digital clock in my 26 year old car (Renault 11) is working just fine and it is on all the time, except when the battery is taken out for water refill or replacement. Also, two of my uncles have Casio watches that are probably 30 years old. I guess that depends on the...
11 years ago I bought cheap digital watch and somewhat surprisingly for a 5$ watch it has worked ever since. It has even withstood fair share of knocks and bumps, once I hit it against the wall so hard that it scraped some concrete off. The only problem with it is that display deteriorated a lot...
I spend a lot of time outdoors and I like listening to a radio (got bored with mp3 player). The problem is that there are simply no good local FM stations in Eastern Serbia (ever heard of turbo-folk). There are few good (mostly Romanian) stations that are strong enough even during the day and...
I have several old PCBs from broken radios, TVs and other things with a lot of components that I can take out and use for other things, but I have problem identifying some diodes. Some of the diodes have only one or two circular lines on them (black, gold or white) and no letters or numbers and...
My uncle (an oldtimer who can't use computer) asked me to find a circuit design for something he called 'synchronous generator' (SG). I thought that he was talking about electric motors/generators, but he explained that SG is a device which compares two frequencies. It has an oscillator which...
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