Burkhard Kainka (231)

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| Using a Power-FET it is possible to build a very simple touch dimmer for low voltage lamps. Two drawing pins are used here as the touch cont...

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| Here is a simple circuit for a one transistor Audion type radio powered by a 1.5 V battery. It employs a set of standard lowimpedance headph...

| Any stepper motor can be used as a generator. In contrast to other generators, a stepper motor produces a large induced voltage even at low...

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| Often you find yourself in the position of needing to wind your own coil for a project, or maybe you come across an unmarked coil in the jun...

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| If you ever look at construction notes for building old detector type radios the type of headphones specified always have an impedance of 2...

| Some workbenches can’t help ending up looking like a rats nest of cables and equipment, so its always an advantage if a piece of mains equip...

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| The most commonly used dialect of BASIC for microcontrollers, Intel’s 8052AH-BASIC, cannot be used as is with the new 8051 derivatives. This...

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| If you are new to the CAN bus, look forward to some hard work before seeing the first usable results. After all, at least two microcontrolle...

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| An interface between the PC and the external world does not have to be complicated. This general-purpose Windows interface needs only thre...

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| Nearly all of today’s PCs have a 15-way connection for a joystick. This port is only used for games, while the serial and parallel ports r...