3V power supply. Do-it-yourself

Published 02.02.2012 Presenter Valerij Kharybin

3V power supply. Do-it-yourself
Modern miniature radios, especially imported, are usually powered by two batteries, and also have the possibility to work in steady-state conditions from a stabilized power supply with the voltage of 3V.
Sometimes it is not so easy to find a suitable power supply for such a receiver ...