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June 22, 2010
The simple circuit emulates a similar conjuring trick which sells for hundreds of Pounds. [more]
June 22, 2010
This charger will quickly and easily charge most any lead acid battery. The charger delivers full current until the current drawn by the battery falls to 150 mA. [more]
June 22, 2010
This device was designed to control the light intensity of four filament lamps (i.e. a ring illuminator) for close-up pictures with a digital camera, powered by two AA or AAA batteries. [more]
June 22, 2010
This circuit is a simple ultraviolate light that can be powered by a 6 volt battery or power supply that is capable of supplying 1 or more amps. [more]
June 22, 2010
This circuit has been designed to provide a clearly visible light, formed by 13 high efficiency flashing LEDs arranged in a pseudo-rotating order. [more]
June 22, 2010
This design offers a way to trace resistance in the milliohm range, right to a short between bridged traces beneath a solder mask. [more]
June 22, 2010
This circuit is usable as a Night Lamp when a wall mains socket is not available to plug-in an ever running small neon lamp device. [more]
June 22, 2010
This circuit was created for digital cameras. It's known the digital cameras have considerable power consumption. [more]
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