McGill University students and professors alike recently enjoyed a visit from API founder Saul Walker. Busy from 10:00 a.m. to 10:00 p.m. on March 14th, Walker led intimate seminar sessions about microphone preamplifiers, including the API 512c that he designed. He also made a presentation at the local AES meeting to 150 attendees on the same subject. Walker told us that in the fall he will be instructing a new graduate course at NYU in electronics computer simulation in addition to the undergraduate course in basic electronics that he has been teaching the last four years. Always the kidder, Walker told us, "the lesson plan preparation should keep me off the streets and out of trouble during the summer."