By Noel Randewich SAN FRANCISCO (Reuters) – Apples iPhone 6 Plus uses chips from Qualcomm, Skyworks Solutions, Avago Technologies and other companies, according to gadget repair firm iFixit, which pried one of the devices open in Melbourne early on Friday. Apple said it received a record 4 million first-day pre-orders for the new phones, double the number for the iPhone 5 two years ago, underscoring investors expectations the new handset will maintain the Silicon Valley companys stellar growth. The company is releasing a 4.7-inch iPhone 6 and 5.5-inch iPhone 6 Plus. …