[Texasrocker]

Hello Jose. Im not sure if I fully understand your question, so hopefully someone else here will understand and explain better. However, I will try to help on resistors. Trying to read the old vintage resistors-values is a challenge at best for many of us! Your not alone friend!! I have found that having a schematic with parts values helps alot! Sometimes, the orig prints of schematics from the manufacturers will be abit different, from the JF Riders manuals as well, but close enough to work properly. I have found that resistors when "bad" read much higher in ohms if not already "open". Those need to be replaced. Tolerances on old vintage radios are "broad", usually + / - 10- 20%.Pay close attention to "wattage"- physical size also. Using the correct wattage is very important! If you stay within those limits, most vintage radios will be very forgiving. Hope I have helped, and I wish you best of luck on restoring your vintage Philco mod 60!! I have a completely restored Philco model 65 (lowboy cab) in my collection, and it is one of my favorites indeed!! Randal