I looking for a relay part for Dewalt RAS, according to the manual the part no. 500131 is no longer available, relay are made different now...I know there is a replacement but how do you buy the part? by VAC, amps, or watts???according to the wiring diagram that (LAOADAM) showed in a previous note ( edited Sept 2019), he was talking about a RAS model R1450 which basically similar to my model (Dewalt model 1400, 1964 vintage) He found on micro phish drawings, I assume because he label it "frame 245, 120 volt, model 1030", What is the criteria???