Battery Discharge Detector
Battery discharge indicator. Very simple and reliable scheme. I will use it in the metal detector "Pirate". You can also set for a 3.7 volt battery!
I invite all radio amateurs to the site Soldering iron - http://cxem.net
Battery discharge indicator. Very simple and reliable scheme. I will use it in the metal detector "Pirate". You can also set for a 3.7 volt battery!
I invite all radio amateurs to the site Soldering iron - http://cxem.net