| Professional (directional) microphones often require a phantom supply of 48 V. This is fed via the signal lines to the microphone and has to...
More about Battery (451)
| After buying a number of DECT telephones, we noticed that these became quite warm while charging. That surprised us, because the manufacture...
| This circuit was originally designed to power a motorcycle intercom from the vehicle supply system.
| Modern mobile electronic gadgets demand ever more portable and powerful energy storage devices. Research by battery manufacturers all over t...
| Valve circuits and radios in particular are graced by vast crowds of enthusiasts. If you want to keep your prize vintage radio as authentic...
| The use of batteries has never been greater. Batteries are becoming smaller and lighter even as they package more and more energy per unit v...
| This design is a follow-up to the triumphant ‘Battery Revitaliser’ project published in the September 2001 issue of Elector Electronics. Fro...
| Lead-acid batteries still form an essential part of the on-board power systems in cars, motorcycles, boats and caravans. In its new form, fe...
| Besides being handy for connecting and disconnecting equipment while the computer is running, USB includes a built-in supply line that can p...
| New technologies can introduce new problems. We haven’t really had enough experience in the use of Lithium-Ion batteries to make a precise s...