When operating FIELD DAY our small group powers all radios from an automotive type 12VDC battery. One of our group a couple years ago made up three battery charger/power supplies to no only keep the battery charged but to supply some minimal current to power the radio if needed. These 115VAC power supplies were powered by a 300 watt small gas generator. That member has since passed away.
During the last FIELD DAY, everything was going swimmingly until a couple batteries went below the threshold where the radios would no longer work. The decision by those operating was that the "battery/charger" was not working.
The battery charger/supplies have now arrived at my work bench to determine what was wrong and fix it.
Well, I can't find anything wrong with the units. Also, in looking at the schematic, I am not sure just exactly how the unit are intended to operate (assuming they were designed correctly initially and that they actually did work).
Is there someone out there that can help me with this? Send me an email at w8kmx at bellsouth dot net and I can send you a scanned schematic.
Thanks
Dan
During the last FIELD DAY, everything was going swimmingly until a couple batteries went below the threshold where the radios would no longer work. The decision by those operating was that the "battery/charger" was not working.
The battery charger/supplies have now arrived at my work bench to determine what was wrong and fix it.
Well, I can't find anything wrong with the units. Also, in looking at the schematic, I am not sure just exactly how the unit are intended to operate (assuming they were designed correctly initially and that they actually did work).
Is there someone out there that can help me with this? Send me an email at w8kmx at bellsouth dot net and I can send you a scanned schematic.
Thanks
Dan