I made both the QMX and QMX+ for 12 volts BECAUSE i have a 12 volt power supply. Well it is an MFJ switching supply that is adjustable to 12. Also got a buck device that regulates a battery output from 12.6 or higher to a stable 12 volts.
?
That was my logic, anyway...
--
73
Karl
KI4ZUQ
Karl