The 516F-2 power supply can be used with many of the Collins transmitters and transceivers. The 516F-2 runs from a 115 volts AC 50/60 Hz power source to provide the high voltage DC, low voltage DC, variable DC bias, and an AC filament supply. The provided voltage from the 516F-2 is connected to the associated equipment by a 60 inch long gray cable.
As was the case with many of these power supplies they were often modified to include a speaker as is the case here. The size of the 516F-2 is 10 inches wide by 7 3/4 inches high by 12 inches deep and weighs in at 28 pounds.
As can be seen, at present this power supply along with the KWM-2 is first in line to be restored and is on the work bench as I type this. More pictures of the process are soon to follow.