| The modern computer is a true multimedia machine with capacities far exceeding letter writing or the odd game of chess. You can use it to...
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| The design of this amplifier is based on the assumption that, since the collector current of a transistor is, roughly, the same as the e...
| A continuity tester is very useful for checking printed-circuit boards. It indicates a sound connection by a squeak from a buzzer; there...
| Noticing that the projector is running out of step with the audio programme is pretty embarrassing when your friends and relatives have...