During one of Peter Parker's science classes at Midtown High School, his teacher, Mr. Warren, introduced Professor Cobbwell to Parker, his top student. Mr. Warren suggested to Professor Cobbwell that Peter help him with an electronics experiment over the weekend. Peter gladly agreed, and Cobbwell gave Peter a card telling his address and asked him to pick a recently repaired radio for him. The next day, after picking up Professor Cobbwell's radio at the Tinkerer Repair Shop, Peter visited Cobbwell's lab where Cobbwell spoke about the Tinkerer's ridiculously low prices for radio repair. He then set Peter working on his experiment while he left his home to go lecture at the local Institute.