Poor Richard Note: An idea that has been simmering in the back of Isamu Noguchi's mind for 50 years is about to come to fruition on the occasion of Philadelphia's tricentennial. It is a sculpture costing $520,000 and rising 96 feet high. It depicts a kite, a key and a bolt of lightning, symbols of Philadelphia's favorite son Ben Franklin. The sculpture, which is expected to be completed in September, will be installed on the Philadelphia side of the Benjamin Franklin Bridge, which leads to Camden, N.J. It also leads to the question: What kind of sculpture would symbolize Camden? . . . Spirit of '76 Redux Note: The British Musicians Union is forcing the British Broadcasting Co. to back out of a commitment that would have given Britons a chance to hear "the only professinal kazooists probably in the world," according to Barbara Stewart, founder of Kazoophony, an 11-year-old ensemble made up of graduates of the Eastman School of Music. The British union contends that Kazoophony's appearance would take jobs away from British kazooists. Stewart has appealed to Queen Elizabeth II to intervene but has received no reply. According to a report in Newsday, if the queen provides no help, Stewart has another plan to bring the British her music. She'll get the group booked onto Johnny Carson, which is now televised in England . . . It Will Probably Play in Peoria Note: And since it seems that what the British see on TV eventually finds its way here, usually through the good graces of Mobil Oil and PBS, it is interesting to note that Thames Television has just commissioned a series of six one-hour plays. The subject? Unemployment. The series is expected to focus on the lives of four or five people laid off from a factory. The as-yet-untitled work will be produced by Verity Lambert, producer of the recent hit "The Flame Trees of Thika" and "Rock Follies" (the series that gave Rula Lenska her big break) . . . What She Did for Love Note: Some weeks ago this space reported on Tippi Hedren's new film, "Roar," and described the physical abuse she endured to make it, including having a leg crushed by an elephant and being mauled by a lion, "pets" on her 50-acre California ranch. Now she is seeking a divorce from her husband of 17 years, Noel Marshall, who directed the film. She has secured a restraining order forbidding him to abuse her physically or to come within 20 feet of their home . . . photo 1: Arrive Alive! A truly on-the-road, all-female jazz quintet. photo 2: Si Kahn: Singing's "a tool that helps bring people together..."