1. Remove 6 sheet metal screws holding back chassis.
2. Unsolder the wires going to the each of the 2 lugs on the AC receptacle. One side will have a white wire to the power transformer primary, a gray wire going to lug 1 of the Cinch Jones connector and a .0047 bypass cap. The other side will have a black wire going to the spst power toggle switch and a .0047 bypass cap.
3. Unsolder and discard the bypass caps at the solder lug. Clean up the lug for use later.
Note: Your wiring may differ. Just note the connections to the brass screws on the Hubbell receptacle. These will be the same with the replacement receptacle.
4. Remove the two brass terminal screws and solder lugs on the receptacle.
5. Remove the two screws holding the AC receptacle to the chassis.
6. Remove and discard the 2 wire receptacle.