LM723CN Voltage Regulator IC, adjustable 3 to 37 volts. 14 pin dual inline package. Used on Williams System 11/Data East equivalent pinball power supplies. Good idea to put it in a socket when replacing it. This reduces damage from multiple replacements. Also allows you to put the old part back if you guess wrong on the problem. Sockets are cheap here.
Williams at IC1 5460-09424-00