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Diodes D1 and D2 are protection devices that conduct only at startup, when the tubes are cold and haven't begun to conduct current—or when a tube is missing from its socket.
Did you ever want to upgrade your bread-boarded circuits to something more permanent? Or maybe you've got a hankering to make your own metal Jelwery? Today Sylvia will show you how you can do both wit...
Designing boards that fit within industry standard specifications gives you two advantages: you keep down the cost of your end product, so that it will sell better; and you improve its long-term relia...
A small board like this one, especially one with low gain, probably does not improve much by having a groundplane but there is one advantage. By pouring a copper fill on the bottom of the board, less ...
These brushless motor pump controllers providepower tracking current boosting operation that extendsthe effective pumping day to provide more water outputper installed watt of solar array. They featur...
Making your own printed circuit board can be a truly satisfying process, tying together electronics and the handmade craft of etching. It's the most accurate way to build a circuit short of sending aw...
Green-black solution in water with a mild acid-like odor. May cause eye and skin burns. May be harmful if swallowed. Ingestion may cause rap.