So I've got this little Hammond amp from an organ and I'm converting it to a small guitar amp for my son. I ordered carbon film resistors from Parts Connexion. I installed a couple and remembered I should check their value before installing and all of them measured within spec except the 1megs( all 3) were in about 680,000 ohms and the 470K ( all 4) were about 380,000 ohms. I changed the battery in my tester and checked again with same results. I had my kids check the colors on the resistors and they appear to be the correct colors for the values I ordered. Could the colors be wrong fro m the factory or could I somehow be measuring wrong? Any ideas?