| Further to the information in this month's 'Extra' supplement which is entirely dedicated to valve technology for audio electronics, we rum...
| Further to the information in this month's 'Extra' supplement which is entirely dedicated to valve technology for audio electronics, we rum...
| Today there are so many variants of surround sound in circulation that even professional audio eng ineers find it difficult to keep tra...
| A beam tetrode employs principles not found in other types of valve: the electron stream from the cathode is focused ('beamed') towards the...
| Good news for all of you who like to have Elektor Electronics magazine in electronic form: the second CD-ROM covering a whole year's...
| The conversion of analogue signals, such es the output of a temperature sensor, into a digital code remains a challenge for many computer...
| This circuit is for those of you who have a door bell switch installed on the front as well as on the rear door. Fine, but when using a s...
| This little circuit exploits the fact that the remaining capacity of a Lithium Ion (Li-Ion) rechargeable battery is virtually proportiona...
| At the heart of this power supply is the type 723 voltage regulator. Despite its age, the 723 is still popular among radio amateurs becau...