Wayne,
You stated, "I built my QDX for 9VDC and am running it with a 9VDC 2Ah wall wart power supply. "? Can you confirm that it is 2 amps and not 2 amperhours?? There is a difference as amperhours is the length of time that the battery will provide current depending on the amount of current drawn.? There is also a maximum current that the supply can deliver.? The best is to measure the voltage while the QDX is running.
73
Evan
AC9TU
