More about circuit (744)

1-07-2010 | This circuit is for a superheterodyne receiver where the image frequency is suppressed without the use of an input filter. Instead, it uses...

1-07-2010 | If you are both an all-terrain biker and handy with a soldering iron, then we suggest you build this musical horn which, apart from the fact...

1-07-2010 | This circuit is a tester for flywheel-based ignition systems in small aeroplane engines. Basically the same ignition coils are also seen in...

1-07-2010 | This voltage monitor circuit is based on an Elektor design with a 555 timer IC in the book 302 Circuits, which uses two LEDs (red and green)...

1-07-2010 | This tester consists of two integrated remote control receivers whose outputs drive an LED to indicate when a suitable infrared signal is re...

1-07-2010 | Many electronic projects call for a timebase generator, accurate to a second or so. One way of producing this is with a microcontroller, qua...

1-07-2010 | Here’s a rather special voltmeter that will let you measure the AC grid voltage and also see very accurately how it fluctuates around its no...

1-07-2010 | Chip manufacturers are always coming up with ever more sophisticated constant current driver chips for LEDs. We have included this design fo...

1-07-2010 | This design came about when the author wanted better control of his 12 V solar-charged garden lighting installation. It is however a versati...

1-07-2010 | Developing a lighting control unit recently, the author found that available analogue or mechanical timers were not sufficiently accurate or...