FYI, I have available an AN3514-1 Inverter, input 27.5 volts dc @ 59.5 volts, output 750 VA @ 400 Hz. This is off the data plate on the unit, I have photos, unit is not tested but looks good, contact me for photos. I can deliver on Wednesday to WB6AZP in Santa Paula, CA or ARRL Convention this weekend in Yuma, AZ. Tom Murphy, W6TOM