The Original FlashMaster is an 800 w/s unit that has been in production for over fifty years, although it no longer appears in their annual catalog.
The most notable thing about the FlashMaster Power Supply is that it uses a unique "ratio-plug" system. In order to change the power output of your lampheads, you are required to remove and substitute a different plug. This will result in a different pre-set level of power to each lamphead.
The FlashMaster is Ideal for the photographer who consistently requires the same power settings over and over again.
AA08B - 800 Watt/Second Power Supply