See attached picture showing the jumpers in their original location. Terminals 1&2, jumpered to the far right pair of terminals which is the +/-15VDC power supply and the chassis fan.
You would put 110VAC on terminals 1&2,
When I spoke with SD Tech support they did tell me it would run on single phase BUT said it must be an isolated power supply. When you visted me, I told you that I did hook up the 3 phase isolation transformer on the machine, with 240VAC Single phase. I then went to the secondary side of the isolation transformer and found the terminals that provided 110VAC I used one of the secondaries for the Servo Dynamics Amp.
You can do away with the 3 phase bridge as previously mentioned, Very easy to wire up. Look at the bridge you bought on the side you will see a + sign on one terminal and a - sign diagonally from it. The + terminal goes up to the + terminal on the beer can capacitor. The - terminal goes up to the - terminal on the beer can capacitor. The other two terminals on the bridge should say either AC or show a sine wave symbol. Those go to Terminal block terminals 1&2 (which have the jumpers over to the far right terminals to feed the fan and the +/-15VDC power supply)
Marty