An old work colleague popped out yesterday. It was great to see him. I had not seen him for perhaps 30 years. He very kindly brought some Practical Wireless magazines mostly from the early 1980s. For those that don't know PW is a UK radio magazine you can buy in shops.
What struck me was the very high number of advertisers, which is not the case today. Clearly radio was very healthy back then. These days, the majority of adverts are from just one company. If they stopped then PW would probably be in deep, deep trouble.