I would like to find a power transformer for a National NC-183D. For whatever reason the primary shorted out on the one in my unit. Its 670VCT at 250mA, 5.0 at 3A and 6.3 at 6A . I may need one for an HRO-50 soon but I haven't put that one on the bench yet. Mod-U-Lator, Mike(y)/W3SLK Thanks,