Most visited posts this week
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Figure 1: Diagram of quartz tester whose core is less than 1 MHz. You need to use this tester, a digital frequency meter (ELM has pub...
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Figure 1: Diagram of the detector of magnetic material. If you approach an object's magnetic core of Ferroxcube choke L1, the LED li...
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With a PWM controller, this board allows very fine adjustment of the energy supplied (and thus the speed of rotation of the axis) to an...
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Here we use again a hybrid module Aurel to produce, with very few components around, a ray of radio on-off dual channel capable of work...
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An aluminum, two wheels and of course a touch of electronics and the game is done! A group of students electronics has put into practi...
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This micro-transmitter UHF feasible in version 10 or 400 mW, can transmit the sounds it picks up within several hundred meters. Powered by 2... -
Figure 1: Diagram of the circuit without power transformer and component list. Here's a good time that I manage to get the low vo...
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Here is a wideband receiver, very sensitive, can detect the radio radiation at gigahertz megahertz. While it is interesting to locate t...
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How is it possible to power an LED with high brightness, the conduction voltage of 3 V with 1.5 V battery? That is what this article will te...
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This mini transmitter is on a printed circuit of just 4 x 9 cm which take up a high sensitivity electret microphone and a camera CMOS u...