| Power LEDs are getting more and more powerful. Although some can be pricey, we wanted to see for ourselves what one of these modern ‘heavywe...
More about Circuit (708)
| Here at Elektor, for more than 20 years we’ve held the opinion that electrolytic capacitors have the worst properties for audio signal paths...
| As an electronics enthusiast or engineer, you’ll know that the design of electronic circuits can be complex. These days, however, you can ge...
| For many years the author has been approached by people who have managed to lay hands on an ‘antique’ electric clock and need an alternating...
| A noise generator with a wideband output signal is always handy to have around when you’re adjusting receivers and other types of HF equipme...
| The purpose of the circuit is to ensure that AC power is not supplied to devices connected to K3 unless the device connected to K2 is drawin...
| This crystal tester is very straightforward. Fitting a crystal or switching on the supply voltage generates a ‘start pulse’ resulting from t...
| Most National Health Departments and Councils seem to agree that the recommended fridge temperature should be between 2 (C and 7 (C (35 (F t...
| In sailing regattas it’s handy to have a daggerboard that can be raised and lowered vertically. As the winding handle or positioning motor n...
| The majority of hand-held digital volt meters use an LCD screen and are powered from a nine volt battery. Inside is most probably an ICL7106...