I purchased a 1929 Hotpoint Electric Stove Cat. 280 RA77, Ser. 38 80A. I need a wiring diagram for this range so we can check it out before plugging it in and "burning the house down" (my husband's quote.) I was told at Hotpoint that they do not have the schematic manual HWB-2 or the tech manual SG-52 available. Is there any way you can help us with wiring diagram or manuals? Thank you.