Petrosani Hobby Magazine - no. 11-12 - 2006 - How do we build a battery?

Reading time: 3 minute The main topics discussed in this issue: Ham-spirit (Amateur Radio Code of Conduct); DIY phone; Aluminum / air electrical source; About voltage regulators (from the series: 78xxx and 79xxx); Antenna and grounding (rules extracted from NTS); Semiconductor marking codes; Military receivers and transmitters;