You are bidding on a power supply with a UTC type PA-2941 transformer.  I have no idea of the voltages as I got this loose.  The transformer is hefty and the filter caps are high capacity, at 35 volts.  so, t is completely untested, but appears to be in good clean condition.  There are some transistors on the bottom.  It measures roughly 9 3/4 by 3 1/4 inches in cross section, and is 5 3/4 inches tall.  It should be useful for someone.  Shipping weight is 10 pounds.  No shipping to China.  Please see my other auctions for more interesting tubes and radio and audio items.