More about Circuit (737)

1-09-2010 | As an electronics enthusiast or engineer, you’ll know that the design of electronic circuits can be complex. These days, however, you can ge...

1-07-2010 | 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...

1-07-2010 | 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...

1-07-2010 | 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...

1-07-2010 | This crystal tester is very straightforward. Fitting a crystal or switching on the supply voltage generates a ‘start pulse’ resulting from t...

1-07-2010 | 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...

1-07-2010 | 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...

1-07-2010 | 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...

1-07-2010 | This circuit is a simple but high-quality preamplifier using a DS1882 digital potentiometer, a device specially designed for audio applicati...

1-07-2010 | For car alarms, emphasis should be put on hearing the audible alert and identifying it as belonging to your ‘wheels’. Unfortunately, modern...